Military Technologies: Technology During the Vietnam War
Afghanistan at War: From the 18th-Century Durrani Dynasty to the 21st Century
Vietnam War: A Topical Exploration and Primary Source Collection
Special Reports, Set 2: The Zika Virus
Tech in the Trenches: Strategic Inventions of the Vietnam War
Decades of the 20th and 21st Centuries: The 1920s
Defining Documents in American History: The 1900s (1900-1909)
Military Technology: Top Secret Clearance: Tanks of World War II Up Close
American History through Its Greatest Speeches: A Documentary History of the United States
Timeline Trackers: Westward Expansion: A Timeline History of the Transcontinental Railroad
Tech in the Trenches: Strategic Inventions of the Revolutionary War
The Depression Era: A Historical Exploration of Literature
Primary Sources in U.S. History: The Cold War
Frontline Families: The Vietnam War: Frontline Soldiers and Their Families