Empires in the Middle Ages: The Holy Roman Empire
Cause & Effect: Ancient Civilizations: Ancient China
Cause & Effect: Modern Wars: The Vietnam War
The Britannica Guide to Islam: The Foundations of Islam and Islamic Thought
Empires in the Middle Ages: The Byzantine Empire
Cause & Effect: Modern Wars: The War on Terror
Cause & Effect: Modern Wars: World War II
Cause & Effect: Modern Wars: The Cold War
Power and Religion in Medieval and Renaissance Times: The Emergence of Modern Europe
Primary Sources in World Warfare: The Vietnam War
American History: The Salem Witch Trials: A Crisis in Puritan New England
Primary Sources in World Warfare: World War I
A Political and Diplomatic History of the Modern World: The Cold War
World History: The Black Death: Bubonic Plague Attacks Europe
The World of Renaissance Italy: A Daily Life Encyclopedia
Analyzing the Issues: Critical Perspectives on Terrorism
Daily Life in 18th-Century England
Sacred Texts Interpreted: Religious Documents Explained