Comprehensive notes on world history by Frank E. Smitha.

The Middle Ages

East Roman Empire
Justinian's conquests.
Persia
Koshru the Great. War with Constantinople. Persia disintegrates.
Mohammed and Islam
Arabs conquer the Middle East
Britain
From King Arthur to William of Normandy.
Europe 10/11th century
Merovingians, Carolingians, Vikings and Magyars.
China
Sui, Tang and Sung China.
Japan
Japanese Buddhism and military aristocracy.
Islam expands
Omar II, the Abbasids, Sufism.
Hinduism and Moslems
Harsha. Bhakti movement. Moslem invasion.
Africa
Aksum to 800. Ghana and Mali. Empire in Ethiopia, Zimbabwe.
The Americas
Maya, Teotihuacan, Aztecs. Incas. Eskimos and others north of the Rio Grande.