The Age of Exploration: From Christopher Columbus to Ferdinand Magellan
America in the Cold War: A Reference Guide
Authors of the Medieval and Renaissance Eras: 1100 to 1660
The Sun-Centered Universe and Nicolaus Copernicus
Warfare in the Roman Republic: From the Etruscan Wars to the Battle of Actium
Authors of The Enlightenment: 1660 to 1800
Authors of the Early to mid-20th Century
Biographies of the New World: Leif Eriksson, Henry Hudson, Charles Darwin, and More
Japanese-American Internment during World War II
Biographies of the American Revolution: Benjamin Franklin, John Adams, John Paul Jones, and More