Curriculum - American History 1901-1950
- Atomic Bombs Destroy Hiroshima and Nagasaki
- The Atomic Energy Commission Is Established
- Augustus Saint-Gaudens
- Autoworkers Negotiate a Contract with a Cost-of-Living Provision
- Avant-garde Art in the Armory Show Shocks American Viewers
- Avery, Macleod, and McCarty Determine That DNA Carries Hereditary Information
- Aviator Earhart Disappears in Flight over South Pacific
- Awa Tsireh
- Ayn Rand
- B. F. Skinner
- Babe Ruth
- Baekeland Invents Bakelite
- Baker Dances in La Revue nègre
- Baker Establishes The 47 Workshop at Harvard
- Balanchine and Kirstein Make New York a World Center for Ballet
- Balanchine’s Serenade Inaugurates American Ballet
- The Ballet Russe de Monte Carlo Finds New Leadership
- The Bank of United States Fails
- The Banking Act of 1933 Reorganizes the American Banking System
- The Banking Act of 1935 Centralizes U.S. Monetary Control
- Barbara Jordan
- Barbara W. Tuchman
- Barbara Walters
- Battle of Bataan
- Battle of Bulge
- Battle of Château-Thierry/Belleau Wood
- Battle of Coral Sea
- Battle of Guadalcanal
- Battle of Guam
- Battle of Leyte Gulf
- Battle of Meuse-Argonne
- Battle of Midway
- Battle of Monte Cassino
- Battle of Okinawa
- Battle of St. Mihiel
- Battle of the Bulge
- Battle of the North Atlantic
- The Baylor Plan Introduces Prepaid Hospital Care
- Bea Medicine
- Beatrix Jones Farrand
- Beebe and Barton Set a Diving Record in a Bathysphere
- Bell Labs Is Formed
- Bell System Demonstrates Long-Distance Television
- Bell’s X-1 Rocket Plane Breaks Sound Barrier
- Belva A. Lockwood
- Ben Nighthorse Campbell
- Ben Reifel
- Benedict Publishes Patterns of Culture
- Benjamin Nathan Cardozo
- Benjamin Spock
