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  In the exchange of goods many diseases were passed on from one area to another.
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  Required caravans of camels. Exchange of salt for gold.
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  Roman empire divides into East and West halves.
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  Medieval Europe. Division of small kingdom in Europe.
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  Unified China. Created the Grand Canal.
Short lived dynasty. - 
  
  Mohammed was a Prophet. It spread over many countries after the defeat of Ghana.
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  Born in Mecca. He is Allahs messenger. He was gods final revelation to humankind.
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  Confucian based examination system. Centralized government. Followed the Sui Dynasty.
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  Based on the Sharia. No distinction between religious law and civil law.
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  They defeated the Persians and took over Byzantium territory.
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  Acknowledged monotheism. Believe in Allah.
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  Ruled Carolingian Empire. Imperial bureaucracy.
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  Major trading network.
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  Centralized government. 6 major departments = personnel, finance,rites, army, justice, and public works. They had censorate.
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  Rapidly increasing population. Benefits to economy.
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  Muslims and Christians fight. Church wanted to keep control so they punished, tortured, or executed those who didn't follow the doctrine.
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  Byzantine gets European help. Fought 20 years.
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  United and led the Mongols. Many military victories.
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  Temujin was recognized as Genghis Khan. The meaning was universal or supreme ruler.
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  The conquest continued for 50 years on Genghis Khan and his grandsons. Beginning of Mongol conquest.
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  Destruction of this area by the Mongols.
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  The Black Death. Decrease in population. There was warfare.
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  The capital is sacked. End of Abbasid Dynasty. About 200,000 people were massacred.
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  They defeat Egyptian forces in Palestine.
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  Mongol rule of Yuan Dynasty. He improved roads, lowered taxes, supported scholars, limited death penalty, etc...
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  Born in Venice. He was educated. He knew many languages and followed the Christian church.
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  Causes division of Mongols. There is rising prices, plagues, and growing rebellions.
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  Greatest Arab Historian. Identified trends of structures in world history.
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  Mongol rule in Russia declines. Russians grow in strength and the Mongols divide. Centered in the city of Moscow.
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  They swept through North Africa, and conquer Spain and France. They reach the Indus River and take over major towns in Central Asia.