Categories - Military History
- 6.6 Million Women Enter the U.S. Labor Force
- A. P. Hill
- Abahai
- Abd el-Krim
- Abdelkader
- Abenaki Wars
- Abraham Lincoln
- Abū al-ʿAbbās
- Abū Bakr ibn ʿUmar
- Abu Klea
- Activists Oppose Deployment of the MX Missile
- Admiral Richard Howe
- Adolf Hitler
- Aetius
- Afghan Peace Pact Fails to End Bloodshed
- Afonso de Albuquerque
- Afonso I
- African Americans Riot in Watts
- Agesilaus II of Sparta
- Ahmed Ben Bella
- Aircraft Carriers
- Akbar
- Alamo
- Alani Gain Power
- Alaric
- Albanian Chieftains Are United Under Skanderbeg
- Albanian-Turkish Wars
- Albert Kesselring
- Albert Sidney Johnston
- Albigensian Crusade
- Albrecht Wenzel von Wallenstein
- Alcibiades
- Alcibiades of Athens
- Aldo Moro Is Kidnapped and Murdered by Italian Terrorists
- Aleksandr Kolchak
- Aleksandr V. Suvorov
- Aleksandr Vasilyevich Suvorov
- Aleksei Brusilov
- Aleksei Kuropatkin
- Alessandro Farnese
- Alessandro Farnese, duke of Parma
- Alexander Hamilton
- Alexander I
- Alexander M. Haig
- Alexander Nevsky
- Alexander Nevsky Defends Novgorod from Swedish Invaders
- Alexander of Tunis
- Alexander the Great
- Alexander the Great Begins Expansion of Macedonia
- Alexander the Great Invades the Indian Subcontinent
