The Britons
Following the withdrawal of the Roman legions to Gaul (modern France) around 400, the British Isles fell into a very dark period of several centuries from which almost no written records survive. The Romano-British culture that had existed under 400 years of Roman rule disappeared under relentless invasion and migration by barbarians. Celts came over from Ireland (a tribe called the Scotti gave their name to the northern part of the main island, Scotland). Saxons and Angles came from Germany, Frisians from modern Holland, and Jutes from modern Denmark. By 600, the Angles and Saxons controlled most of modern England. By 800, only modern Wales, Scotland, and West Cornwall remained in largely Celtic hands.
The new inhabitants were called Anglo-Saxons (from the Angles and Saxons). The Angles gave their name to the new culture (England from Angle-land), and the Germanic language they brought with them, English, replaced the native Celtic and previously imported Latin. Despite further invasions and even a complete military conquest at a later date, the southern and eastern parts of the largest British Isle have been called England (and its people and language English) ever since.
In 865 the relative peace of England was shattered by a new invasion. Danish Vikings who had been raiding France and Germany formed a great army and turned their attention on the English. Within 10 years, most of the Anglo-Saxon kingdoms had fallen or surrendered. Only the West Saxons (modern Wessex) held out under Alfred, the only English ruler to be called �the Great.�
England was divided among the Vikings, the West Saxons, and a few other English kingdoms for nearly 200 years. The Viking half was called the Danelaw (�under Danish law�). The Vikings collected a large payment, called the Danegeld (�the Dane�s gold�), to be peaceful. The Danes became Christians and gradually became more settled. In time the English turned on the Danes, and in 954 the last Viking king of York was killed. England was united for the first time under an English king from Wessex.
In 1066 the Witan (�king�s council�) offered the crown to Harold, son of the Earl of Wessex. Two others claimed the throne: Harald Hardrada (meaning �the hard ruler�), King of Norway, and Duke William of Normandy. The Norwegian landed first, near York, but was defeated by Harold at the battle of Stamford Bridge. Immediately after the victory, Harold force-marched his army south to meet William at Hastings. The battle seesawed back and forth all day, but near dusk Harold was mortally wounded by an arrow in the eye. Over the next two years, William, now �the Conqueror,� solidified his conquest of England.
During the remainder of the Middle Ages, the successors of William largely exhausted themselves and their country in a series of confrontations and wars attempting to expand or defend land holdings in France. The Hundred Years War between England and France was an on-and-off conflict that stretched from 1337 to 1453. It was triggered by an English king�s claim to the throne of France, thanks to family intermarriages. The war was also fought over control of the lucrative wool trade and French support for Scotland�s independence. The early part of the war featured a string of improbable, yet complete, English victories, thanks usually to English longbowmen mowing down hordes of ornately armored French knights from long range.
The English could not bring the war to closure, however, and the French rallied. Inspired by Joan of Arc, a peasant girl who professed divine guidance, the French fought back, ending the war with the capture of Bordeaux in 1453. The English were left holding only Calais on the mainland (and not for long).

Byzantines

The Byzantines took their name from Byzantium, an ancient city on the Bosphorus, the strategic waterway linking the Black Sea to the Aegean Sea. The Roman Emperor Constantine had renamed this city Constantinople in the fourth century and made it a sister capital of his empire. This eastern partition of the Roman Empire outlived its western counterpart by a thousand years, defending Europe against invasions from the east by Persians, Arabs, and Turks. The Byzantines persevered because Constantinople was well defended by walls and the city could be supplied by sea. At their zenith in the sixth century, the Byzantines covered much of the territories of the original Roman Empire, lacking only the Iberian Peninsula (modern Spain and Portugal), Gaul (modern France), and Britain. The Byzantines also held Syria, Egypt, and Palestine, but by the middle of the seventh century they had lost them to the Arabs. From then on their empire consisted mainly of the Balkans and modern Turkey.
The first great Byzantine emperor was Justinian I (482 to 565). His ambition was to restore the old Roman Empire and he nearly succeeded. His instrument was the greatest general of the age, Belisarius, who crisscrossed the empire defeating Persians to the East, Vandals in North Africa, Ostrogoths in Italy, and Bulgars and Slavs in the Balkans. In addition to military campaigns, Justinian laid the foundation for the future by establishing a strong legal and administrative system and by defending the Christian Church.
The Byzantine economy was the richest in Europe for many centuries because Constantinople was ideally sited on trade routes between Asia, Europe, the Black Sea, and the Aegean Sea. It was an important destination point for the Silk Road from China. The nomisma, the principal Byzantine gold coin, was the standard for money throughout the Mediterranean for 800 years. Constantinople�s strategic position eventually attracted the envy and animosity of the Italian city-states.
A key strength of the Byzantine Empire was its generally superior army that drew on the best elements of the Roman, Greek, Gothic, and Middle Eastern experience in war. The core of the army was a shock force of heavy cavalry supported by both light infantry (archers) and heavy infantry (armored swordsmen). The army was organized into units and drilled in tactics and maneuvers. Officers received an education in military history and theory. Although outnumbered usually by masses of untrained warriors, it prevailed thanks to intelligent tactics and good discipline. The army was backed by a network of spies and secret agents that provided information about enemy plans and could be used to bribe or otherwise deflect aggressors.
The Byzantine navy kept the sea-lanes open for trade and kept supply lines free so the city could not be starved into submission when besieged. In the eighth century, a land and sea attack by Arabs was defeated largely by a secret weapon, Greek fire. This chemical weapon, its composition now unknown, was a sort of liquid napalm that could be sprayed from a hose. The Arab navy was devastated at sea by Greek fire.
In the seventh and eighth centuries, the Arabs overran Egypt, the Middle East, North Africa, and Spain, removing these areas permanently from Byzantine control. A Turkish victory at Manzikert in 1071 led to the devastation of Asia Minor, the empire�s most important source of grain, cattle, horses, and soldiers. In 1204 Crusaders led by the Doge of Venice used treachery to sack and occupy Constantinople.
In the fourteenth century, the Turks invaded Europe, capturing Adrianople and bypassing Constantinople. They settled the Balkans in large numbers and defeated a large crusader army at Nicopolis in 1396. In May 1453, Turkish sultan Mehmet II captured a weakly defended Constantinople with the aid of heavy cannon. The fall of the city brought the Byzantine Empire to an end.
Celts

The Celts (pronounced �kelts�) were the ancient inhabitants of Northern Europe and the builders of Stonehenge 5000 years ago. Julius Caesar had battled them during his conquest of Gaul. The Romans eventually took most of Britain and the Iberian Peninsula from them as well. At the end of the ancient Roman Empire, the Celts occupied only parts of northwestern France, Ireland, Wales, and parts of Scotland. During the course of the Middle Ages, they strengthened their hold on Scotland and made several attempts to take more of England.
The Irish remained in small bands during the early Middle Ages. By 800 the four provinces of Leinster, Munster, Connaught, and Ulster had risen to power under �high kings.� Viking raids began in 795 and then Viking settlements were established in the middle ninth century. The most important of these was at Dublin. Brian Boru became the first high king of all Ireland around 1000. In 1014 the Irish defeated the Danes of Dublin at Clontarf, although Brian Boru was killed.
An Irish tribe called the Scotti invaded what is now southern Scotland during the early Middle Ages, settling permanently and giving the land its name. They pushed back and absorbed the native Picts who had harassed the Romans to the south. The Scottish kingdom took its present shape during the eleventh century but attracted English interference. The Scots responded with the �auld (old) alliance� with France, which became the foundation of their diplomacy for centuries to come. Edward I of England (Longshanks, or �hammer of the Scots�) annexed Scotland in 1296.
William Wallace (Braveheart) led a revolt of Scotland, winning virtual independence at the Battle of Stirling Bridge in 1297. Defeated the next year at Falkirk, Wallace waged a guerrilla war until he was betrayed, captured, and executed in 1305. Robert the Bruce declared himself king of Scotland after murdering his main rival. He drove out the English, winning the battle of Bannockburn in 1314. Edward III of England recognized Scotland�s independence in 1328, but war between the Scots and English carried on for several centuries. The crowns of the two countries were united in 1603, long after the Middle Ages were over.
No prince in Wales proved strong enough to unite the country. In the late thirteenth century, Edward I took over the government of Gwynedd, one of the strongest Welsh principalities in Wales. He proceeded to build five great castles in Wales, effectively placing the country under English rule.

Chinese
China was reunited in 581 AD after a long period of internal war by the founders of the Sui dynasty. For most of the 1000 years that followed, China was one of the largest and most advanced civilization in the world. Because of its geographic isolation from the West, it was able to develop and maintain a unique culture that spread its influence over much of Asia.
An emperor generally held supreme power as the son of heaven. Natural disasters or other calamities were taken as proof that the mandate of heaven had been withdrawn, however, and could justify revolt. Mandarins were conservative civil servants who operated most of the government at the local, province, and imperial level. Mandarins earned their positions by passing detailed civil service examinations based mainly on the works of Confucius.
The T�ang dynasty ruled China from 618 to 907. China under the T�ang was large, wealthy, and powerful. There was extensive foreign trade and interest in the arts among the upper class. Printing and gunpowder were invented. The last 100 years of T�ang rule witnessed tumultuous peasant revolts, however, and wars between local military rulers that the imperial court could not end. The years from 907 to 960 were known as the Five Dynasties period. Northern China was held by barbarians, and southern China split into 10 rival states. From one of these, an army general named Zhao Kuang-ying seized power and unified the southern states, founding the Song dynasty. His descendants reunited China within 20 years.
The Song dynasty ruled at least part of China until 1279. This was another period of cultural brilliance, and it was considered the great age of Chinese landscape painting. There was a dramatic improvement in economic activity, including a large overseas trade. Population and cities grew, food production grew faster than population, a money economy developed, and industrial output increased. No city in Europe could approach the populations of Chang An, Beijing, and Guang Zhou, all with more than 2 million inhabitants.
The wealth of China attracted enemies, however, and the Mongols began attacks in 1206. By 1279 they had completed the conquest of Song China and moved the capital to Beijing. The dramatic economic improvement of the Song dynasty ended with the Mongol conquests and the estimated 30 million deaths that they caused. The Mongol Yuan dynasty reunited China and reestablished it as a great military and world power. Chinese influence was spread into Asia. Hanoi was captured three times and tribute was extracted from Burma. Trade with India, Arabia, and the Persian Gulf was developed. Marco Polo visited China during this period.
Natural disasters and higher taxes in the fourteenth century caused rural rebellions. A Buddhist monk rose to be one of the leaders of the Red Turbans, a secret society opposed to the emperor in Beijing. The rebels seized Nanjing in 1356 and drove the Mongols from Beijing 12 years later, establishing the Ming dynasty. The Ming presided over another cultural flowering and established a political unity that outlasted the Ming and continued into the twentieth century. The Ming clamped down a strict conservatism and isolation, however, discouraging change and innovation, banning foreign travel, and closing the Silk Road.
Some of the most noteworthy aspects of medieval China are the technologies that were invented there, usually many centuries before a similar technology was invented in, or transmitted to, the West. Important Chinese inventions included the compass, the wheelbarrow, the abacus, the horse harness, the stirrup, the clock, iron-casting, steel, paper, moveable type (printing), paper money, gunpowder, and the stern-post rudder.

Franks
The Franks were one of the Germanic barbarian tribes known to the Romans. In the early part of the fifth century, they began expanding south from their homeland along the Rhine River into Roman-controlled Gaul (modern France). Unlike other Germanic tribes, however, they did not move out of their homelands but, rather, added to them. Clovis, a Frankish chieftan, defeated the last Roman armies in Gaul and united the Franks by 509, becoming the ruler of much of western Europe. During the next 1000 years, this Frankish kingdom gradually became the modern nation of France.
The kingdom of Clovis was divided after his death among his four sons, according to custom. This led to several centuries of civil warfare and struggle between successive claimants to the throne. By the end of the seventh century, the Merovingian kings (descendants of Clovis) were rulers in name only. In the early eighth century, Charles Martel became mayor of the palace, the ruler behind the throne. He converted the Franks into a cavalry force and fought so well that his enemies gave him the name of Charles the Hammer. In 732 the Frankish cavalry defeated Muslim invaders moving north from Spain at the Battle of Poitiers, stopping forever the advance of Islam from the southwest.
Charles Martel�s son, Pepin, was made king of the Franks by the pope in return for helping to defend Italy from the Lombards. Pepin founded the dynasty of the Carolingians, and the greatest of these rulers was Charles the Great, or Charlemagne, who ruled from 768 to 814. He expanded the Frankish kingdom into an empire and was responsible for a rebirth of culture and learning in the West. Charlemagne�s empire was divided among his grandsons and thereafter coalesced into two major parts. The western part became the kingdom of France. Later kings gradually lost political control of France, however. Central authority broke down under the pressure of civil wars, border clashes, and Viking raids. Money and soldiers could be raised only by making concessions to landholders. Fiefs became hereditary and fief holders became feudal lords over their own vassals. By the tenth century, France had been broken into feudal domains that acted as independent states.
In 987 the French nobility elected Hugh Capet their king, mainly because his fief centered on Paris was weak and he was thought to pose no threat. He founded the Capetian line of kings, who worked slowly for two centuries regaining the power by making royal roads safe, adding land to their domain, encouraging trade, and granting royal charters for new towns and fiefs in vacant lands. By allying themselves with the church, the Capetians took a strong moral position and benefited from the church�s cultural, political, and social influence. Royal administrators were made loyal to the king and more efficient by eliminating the inheritance of government offices.
Beginning with Philip II in 1180, three superior rulers established France as one of the most important nations in Europe. They improved the working of the government, encouraged a booming trade, collected fees efficiently, and strengthened their position atop the feudal hierarchy. Although a national assembly called the Estates General was established, it held no real power and was successfully ignored.
From 1337 to 1453 France and England fought the long conflict called the Hundred Years War to decide ownership of lands in France that had been inherited by English kings. The eventual French victory confirmed the king as the most powerful political force in France.

Goths
The Goths were a Germanic tribe on the Danube River frontier known to the Romans from the first century AD. Pressured and then displaced when the Huns moved west out of Central Asia, the Goths moved west into Europe and over the Danube River to escape the oncoming hordes. After taking part in the fall of Rome, they vied with other barbarians for the leavings of the Western Roman Empire during the Early Middle Ages.

The Goths originated on the island of Gotland in the Baltic, to the best of our knowledge, and split into two groups as they migrated south across Central Europe. The Visigoths, or West Goths, settled in modern Romania during the second century. The Ostrogoths, or East Goths, settled farther to the east on the northwest coast of the Black Sea. In 376 AD the Visigoths were driven from modern Romania by the Huns and moved south across the Danube. Their strength was estimated at 60,000 men, women, and children. They defeated a Roman army from Constantinople, settled briefly south of the Danube, and then pushed into Italy. In 409 they sacked Rome under their king Alaric and then moved north into Gaul. The Romans gave them southwestern Gaul. From there they eventually extended their rule into all of modern Spain and Portugal.

The Ostrogoths broke away from Hunnish rule and followed their cousins into Italy late in the fifth century. They were encouraged to invade by the Eastern emperor, who wanted deposed the barbarian then ruling as viceroy. Under Theodric, king of modern Switzerland and the Balkans already, the Goths entered Italy in 488, completing its conquest in 493.

Theodric's kingdom did not last long following his death in 526. Using a struggle for succession as an excuse, the Byzantines sent an army to Italy in 536 led by their great general Belisarius. The Byzantines hoped to regain Italy and restore the old Roman Empire in the West. The war dragged on, devastating the countryside in conjunction with plague and famine. In 552 the Ostrogoths were finally defeated in Italy. They ceased to exist as a separate group by the late sixth century when northern Italy was invaded by a new group of barbarians called the Lombards.

The Visigoth kingdom lasted somewhat longer. In the late fifth century Clovis of the Franks pushed the Visigoths out of France and over the Pyrenees Mountains. Following the death of Clovis his kingdom fragmented and the Visigoths were temporarily left alone. In 711 a new threat appeared from the south. Islamic armies crossed over from North Africa and destroyed the last Gothic kingdom in four years.

The Goths are remembered for being the first to sack Rome and thereby beginning the final collapse of the ancient world order in Europe. Their admiration for Rome and attempts to preserve it, however, allowed much of the Roman culture to survive. For example, the modern languages of Italy, France, Spain, Portugal, and Romania are derived from Latin influenced by later settlers. They are not variations of German, as was the case in England.

Japanese
Located 100 miles off the mainland of Asia, at its closest point, Japan was a land of mystery at the edge of civilization. Isolated at first by geography and later by choice, the Japanese developed a distinctive culture that drew very little from the outside world. At the beginning of what were the Middle Ages in Europe, the advanced culture of Japan was centered at the north end of the Inland Sea on the main island of Honshu. Across the Hakone Mountains to the east lay the Kanto, an alluvial plain that was the single largest rice-growing area on the islands. To the north and east of the Kanto was the frontier, beyond which lived aboriginal Japanese who had occupied the islands since Neolithic times.

Some believe that by the fifth century AD the Yamato court had become largely ceremonial. Independent clans, known as uji, held the real power behind the throne. Clan leaders formed a sort of aristocracy and vied with each other for effective control of land and the throne.

In 536 the Soga clan became predominant and produced the first great historical statesman, Prince Shotoku, who instituted reforms that laid the foundation of Japanese culture for generations to come. In 645, power shifted from the Soga clan to the Fujiwara clan. The Fujiwara presided over most of the Heian period (794 to 1185). The new leadership imposed the Taika Reform of 645, which attempted to redistribute the rice-growing land, establish a tax on agricultural production, and divide the country into provinces. Too much of the country remained outside imperial influence and control, however. Real power shifted to great families that rose to prominence in the rice-growing lands. Conflict among these families led to civil war and the rise of the warrior class.

Similar to the experience of medieval western Europe, the breakdown of central authority in Japan, the rise of powerful local nobles, and conflict with barbarians at the frontier combined to create a culture dominated by a warrior elite. These warriors became known as Samurai, ("those who serve"), who were roughly equivalent to the European knight. A military government replaced the nobility as the power behind the throne at the end of the twelfth century. The head of the military government was the Shogun.

Samurai lived by a code of the warrior, something like the European code of chivalry. The foundation of the warrior code was loyalty to the lord. The warrior expected leadership and protection. In return he obeyed his lord's commands without question and stood ready to die on his lord's behalf. A Samurai placed great emphasis on his ancestry and strove to carry on family traditions. He behaved so as to earn praise. He was to be firm and show no cowardice. Warriors went into battle expecting and looking to die. It was felt that a warrior hoping to live would fight poorly.

The Kamakura period (1185 to 1333) was named after a region of Japan dominated by a new ruling clan that took power after civil war. The Mongols attempted to invade Japan twice, in 1274 and 1281, but were repulsed both times. A fortuitous storm caused great loss to the second Mongol invasion fleet.

Persians
The Persian Empire had existed for many centuries when the Middle Ages began. It had been reassembled following the conquest by Alexander in the fourth century BC and the subsequent breakup of his empire in later centuries. The Persians had been fighting the Romans since the third century AD.

The Persian Empire stretched from Mesopotamia to India and from the Caspian Sea to the Persian Gulf, encompassing the modern nations of Iraq, Iran, and Afghanistan. They fought the Romans, and later the Byzantines, for control of modern Syria, Turkey, Palestine, Israel, Egypt, and Arabia. The capital of the Persian Empire was Ctesiphon, called Baghdad today.

During the third and fourth centuries, the Romans made several attempts to subdue the Persians. In 364 a peace treaty was signed between the two that allowed the Persians to consolidate their power to the east and north. Beginning with the sixth century, the Persians began attacking the Byzantine Empire in Syria, Palestine, Egypt, and modern Turkey. The war between the two powers went back and forth. In 626 the Persians besieged Byzantium itself without success, and the Byzantines were able to invade Persia the following year. Peace was made between the two exhausted empires in 628.

The Persians were unprepared for the fury of the Islamic Arabs in the seventh century. The Sassanid dynasty of Persia ended in battle in 636. The Persians did not have a capital with defenses comparable to those of Constantinople. Muslim conquest of Persia was complete by 651.

Saracen
The name Saracen applied originally to nomadic desert peoples from the area stretching from modern Syria to Saudi Arabia. In broader usage the name applied to all Arabs of the Middle Ages. These desert nomads erupted suddenly in the seventh century and established a far-reaching empire within a century and a half. Their conquest was fueled by faith and high morale. Following the teachings of the prophet Mohammed, their intent was to change the religious and political landscape of the entire planet.

By 613 the prophet Mohammed was preaching a new religion he called Islam. Largely ignored in his home city of Mecca, he withdrew to Medina, built up a strong following there, and returned to attack and capture Mecca. Following his death in 632, his teachings were collected to form the Koran, the Islamic holy book. In 634 his followers began their jihad, or holy war. Within five years they had overrun Egypt, Palestine, and Syria. Their tolerance of Jews and Christians eased their conquest because these people had been suffering some persecution under the Byzantines.

In the next 60 years, both North Africa to the west and Persia to the east fell to Islam. In the early eighth century, Saracens from Tangiers invaded the Iberian Peninsula and conquered the Visigoth kingdom established there after the fall of Rome. In Asia they took Asia Minor from the Byzantines and attempted to capture Constantinople with a combined attack from land and sea. The great walls of the city frustrated the land attack and the Saracen fleet was defeated at sea. In the west, Charles Martel of the Franks stopped a Saracen invasion of modern France in 732 at Poitiers.

Frustrated in the west, the forces of Islam turned east. By 750 they had conquered to the Indus River and north over India into Central Asia to the borders of China.

In 656 the Muslim world fell into civil war between two factions, the Sunnites and the Shiites. They differed on several points, including who should be caliph and interpretation of the Koran. The result of the 60-year war was that the Islamic state broke into pieces, some governed by Sunnites (the Iberian Peninsula) and others by Shiites (Egypt and modern Iraq). The new Islamic states acted independently, thereafter.

Muslim Spain developed into one of the great states of Europe during the early Middle Ages. Muslims, Jews, and Christians lived together in relative harmony, and a rich culture rose out of these multiple influences. There was a flowering of the arts, architecture, and learning. By 1000, however, Muslim Spain had divided into warring factions. This civil war facilitated the slow reconquest of the peninsula (the Reconquista) by the emerging states of Castile and Aragon, completed finally in 1492.

Asia Minor and the Middle East were conquered by Muslim Turks in the early eleventh century. In response to a call for aid from the Byzantines, a series of Crusades was launched from Europe to regain Palestine from the Turks. The independent Muslim states in the area lost Palestine and the Eastern Mediterranean coast to the First Crusade. In the last part of the twelfth century, the great Saracen leader Saladin succeeded in uniting Egypt, Syria, and smaller states, and he retook Jerusalem.

The Muslim states remained independent long after the Middle Ages and eventually developed into the modern Arab nations of the Middle East and North Africa. They went into economic decline, however, when the European nations opened trade routes of their own to Asia in the fifteenth and sixteenth centuries.

Teutons

The origin of Germany traces back to the crowning of Charlemagne as Holy Roman Emperor in 800. Upon his death the empire was split into three parts that gradually coalesced into two: the western Frankish kingdom that became France and the eastern kingdom that became Germany. The title of Holy Roman Emperor remained in Charlemagne's family until the tenth century when they died out. In 919 Henry, Duke of Saxony, was elected king of Germany by his fellow dukes. His son Otto became emperor in 962.

The Holy Roman Empire that Otto I controlled extended over the German plain north to the Baltic, eastward into parts of modern Poland, and southward through modern Switzerland, modern Austria, and northern Italy. From the outset, the emperors had a difficult problem keeping control of two disparate regions-Germany and Italy-that were separated by the Alps.

The Holy Roman Empire was successful at first because it benefited the principal members, Germany and Italy. The Germans were not far removed from the barbarian condition. They had been conquered by Charlemagne only a century earlier. They benefited greatly from Italian culture, technology, and trade. The Italians welcomed the relative peace and stability the empire ensured. Italy had been invaded time and again for the previous 500 years. The protection of the empire defended the papacy and allowed the city-states of Italy to begin their growth.

The imperial armies were manned partially by tenants of church lands who owed service to the emperor. A second important contingent were the ministriales, a corps of serfs who received the best training and equipment as knights but who were not free men. These armies were used to put down revolts or interference by local nobles and peasants or to defend against raids by Vikings from the north and Magyars from the east.

Because Germany remained a collection of independent principalities in competition, German warriors became very skilled. The most renowned German soldiers were the Teutonic Knights, a religious order of warriors inspired by the Crusades. The Teutonic Knights spread Christianity into the Baltic region by conquest but were eventually halted by Alexander Nevsky at the battle on frozen Lake Peipus.

A confrontation between the emperors and the church over investiture of bishops weakened the emperors in both Germany and Italy. During periods of temporary excommunication of the emperor and outright war against Rome, imperial authority lapsed. The local German princes solidified their holdings or fought off the Vikings with no interference or help from the emperor. In Italy, the rising city-states combined to form the Lombard League and refused to recognize the emperor.

Political power in both Germany and Italy shifted from the emperor to the local princes and cities. The ministriales rebelled, taking control of the cities and castles they garrisoned and declaring themselves free. During desperate attempts to regain Italy, more concessions were given to the local princes in Germany. By the middle of the thirteenth century, the Holy Roman Empire existed in name only. The throne remained empty for 20 years. The German princes cared only about their own holdings. The Italian city-states did not want a German ruler and were strong enough to defend themselves.

Future emperors in the Middle Ages were elected by the German princes but they ruled in name only, controlling little more than their own family estates. Germany remained a minor power in Europe for centuries to come.

Turks
The name Turk refers to two different Muslim groups of the Middle East-first the Seljuks and then the Ottomans. The Seljuks, nomads from the steppes near the Caspian Sea, converted to Islam around the tenth century. Approximately 70,000 Seljuks started as mercenaries to fill the ranks of the Islamic army of the caliph of Baghdad. These mercenaries converted to the Sunni branch of Islam. In 1055 they became the real power behind the caliph in Baghdad and began extending their rule. Their leaders took the title sultan, meaning "holders of power." By 1100 they controlled most of Anatolia (taken from the Byzantines), Palestine, the lands surrounding the Persian Gulf, the holy cities of Arabia, and as far east as Samarkand.

In 1071 the Seljuks achieved a stunning victory over a Byzantine army at Malazgirt in modern Turkey, which led to Turkish occupation of most of Anatolia. At nearly the same time, they successfully captured Jerusalem from its Egyptian Muslim rulers. These two events shocked the Byzantines, the papacy, and the Christian Europeans. The result was the Crusades, which carried on for the next 200 years.

The Seljuk Turks were worn down by the recurring wars with the Crusaders, even though they were successful ultimately in regaining control of Palestine. They were threatened simultaneously by the activities of the Assassins, a heretical sect of Islam. Internally, Islam entered a period of introspection because of the popularity of Sufi mysticism. During this period of exhaustion and weakness, they were attacked suddenly by the Mongols and collapsed. Baghdad fell to the invaders in 1258 and the Seljuk Empire disappeared.

Islamic peoples from Anatolia (modern Turkey in Asia Minor) were unified in the early fourteenth century under Sultan Osman I and took the name Osmanli, or Ottomans, in his honor. The Ottomans swore a jihad against the crumbling Byzantine Empire and took their campaign around Constantinople into the Balkans. In 1389 the Serbs were defeated. In 1396 a "crusader" army from Hungary was defeated. Ottoman successes were temporarily halted by the Mongols under Tamerlane, but he moved on with his army and the Ottomans recovered.

Sultan Mehmed II ("the Conqueror") at last captured Constantinople on May 29, 1453. The great walls of Constantinople were battered by 70 guns for eight weeks and then 15,000 Janissaries led the successful assault.

The Ottomans pushed on into Europe following the capture of Constantinople and threatened a sort of reverse Crusade. They were stopped by a Hungarian army at Belgrade in 1456, however. Attacks on Vienna were repulsed in 1529 and again in 1683. At its peak in the sixteenth century, the Ottoman Empire reached up into Europe to Budapest and Odessa and included all of Greece and the Balkans, the lands surrounding the Black Sea, Asia Minor, the Levant, Arabia, Egypt, and most of North Africa. The Ottoman Empire remained a significant world power until World War I in the twentieth century.

Vikings
The Vikings (meaning "northmen") were the last of the barbarian tribes called Germans by the Romans to terrorize Europe. Spreading out from their homelands in Scandinavia, they struck suddenly across the seas from their dragon boats (called such because of the dragon heads carved on the bow and stern). They began by raiding, pillaging, and withdrawing before any serious armed resistance could be mounted, but they gradually grew more bold. Eventually they occupied and settled significant parts of Europe.

Being pagan, they did not hesitate to kill churchmen and loot church holdings, and they were feared for their ruthlessness and ferocity. At the same time, they were remarkable craftsmen, sailors, explorers, and traders.

The Viking homelands were Norway, Sweden, and Denmark. They and their descendants controlled, at least temporarily, most of the Baltic Coast, much of inland Russia, Normandy in France, England, Sicily, southern Italy, and parts of Palestine. They discovered Iceland in 825 (Irish monks were there already) and settled there in 875. They colonized Greenland in 985. Some people think that the Vikings reached Newfoundland and explored part of North America 500 years before the voyage of Columbus.

Vikings began raiding and then settling along the eastern Baltic Sea in the sixth and seventh centuries. At the end of the eighth century, they were making long raids down the rivers of modern Russia and setting up forts along the way for defense. In the ninth century, they were ruling Kiev and in 907 a force of 2000 ships and 80,000 men attacked Constantinople. They were bought off by the emperor of Byzantium with very favorable terms of trade.

Vikings struck first in the West in the late eighth century. Danes attacked and looted the famous island monastery at Lindisfarne on the northeast coast of England, beginning a trend. The size and frequency of raids against England, France, and Germany increased to the point of becoming invasions. Settlements were established as bases for further raids. Viking settlements in northwestern France came to be known as Normandy ("from the northmen"), and the residents were called Normans.

In 865 a large Danish army invaded England, and they went on to hold much of England for the next two centuries. One of the last kings of all England before 1066 was Canute, who ruled Denmark and Norway simultaneously. In 871 another large fleet sailed up the Seine River to attack Paris. They besieged the city for two years before being bought off with a large cash payment and permission to loot part of western France unimpeded.

In 911 the French king made the Viking chief of Normandy a duke in return for converting to Christianity and ceasing to raid. From the Duchy of Normandy came a remarkable series of warriors, including William I, who conquered England in 1066, Robert Guiscard and his family, who took Sicily from the Arabs between 1060 and 1091, and Baldwin I, king of the crusader kingdom of Jerusalem.

Viking raids stopped at the end of the tenth century. Denmark, Sweden, and Norway had become kingdoms, and much of their king's energy was devoted to running their lands. The spread of Christianity weakened the old pagan warrior values, which died out. The Norse were also absorbed by the cultures into which they had intruded. The occupiers and conquerors of England became English, the Normans became French, and the Rus became Russians.