Cause & Effect: Ancient Civilizations: Ancient Mesopotamia
The Britannica Guide to Islam: The Islamic World from Prehistory to 1041
Empires in the Middle Ages: The Holy Roman Empire
Empires in the Middle Ages: The Byzantine Empire
Cause & Effect: Modern Wars: World War I
Cause & Effect: Modern Wars: The War on Terror
Cause & Effect: Ancient Civilizations: Ancient Greece
Power and Religion in Medieval and Renaissance Times: The Italian and Northern Renaissance
Cause & Effect: Modern Wars: The Cold War
Cause & Effect: Modern Wars: World War II
Primary Sources in World Warfare: The Vietnam War
A Political and Diplomatic History of the Modern World: The Cold War
Primary Sources in World Warfare: World War I
World History: The Black Death: Bubonic Plague Attacks Europe
American History: The Salem Witch Trials: A Crisis in Puritan New England
The World of Renaissance Italy: A Daily Life Encyclopedia
Analyzing the Issues: Critical Perspectives on Terrorism
Daily Life in 18th-Century England
The Nile: An Encyclopedia of Geography, History, and Culture