The Louisiana Purchase and Westward Expansion
Frontline Families: The American Revolution: Frontline Soldiers and Their Families
Primary Sources of the Abolitionist Movement: The Women's Rights Movement and Abolitionism
Crime and Punishment in America: An Encyclopedia of Trends and Controversies in the Justice System
Timeline Trackers: Westward Expansion: A Timeline History of the Transcontinental Railroad
Exploring Positive Psychology: The Science of Happiness and Well-Being
Great Empires: The Aztec Empire
Primary Sources of American Political Documents: Understanding the Articles of Confederation
Great Empires: The Chinese Empire
Primary Sources of the Abolitionist Movement: Slave Narratives and the Writings of Freedmen
The Early Republic: Documents Decoded
Decades of the 20th and 21st Centuries: The 1950s
Defining Moments: The Constitution and the Bill of Rights
Timeline Trackers: Westward Expansion: A Timeline History of the Mexican-American War
Interpreting Our World: 100 Discoveries That Revolutionized Geography