The Britannica Guide to Islam: Islamic Literature
Empires in the Middle Ages: The Islamic Caliphate
Cause & Effect: Modern Wars: The War on Terror
Cause & Effect: Ancient Civilizations: Ancient China
Empires in the Middle Ages: The Mongol Empire
Empires in the Middle Ages: The Holy Roman Empire
The Britannica Guide to Islam: The Islamic World from 1041 to the Present
Power and Religion in Medieval and Renaissance Times: The Italian and Northern Renaissance
The Britannica Guide to Islam: The Islamic World from Prehistory to 1041
A Political and Diplomatic History of the Modern World: The Cold War
Primary Sources in World Warfare: The Vietnam 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
Primary Sources in World Warfare: World War II
The Sea in World History: Exploration, Travel, and Trade