Curriculum - 20th & 21st Century European History
- A. A. Milne
- A. J. Ayer
- Aalto Designs Villa Mairea
- The Abbey Theatre Heralds the Celtic Revival
- Abel Gance
- Abraham Joshua Heschel
- Adolf Hitler
- Adolf von Harnack
- Agatha Christie
- Ahmed Sékou Touré
- AIDS Scientists and Activists Meet in Amsterdam
- Aimé Césaire
- Aircraft Carriers
- Alan Mathison Turing
- Alasdair MacIntyre
- Alban Berg
- Albania Opens Doors to Foreign Nationals
- Albania Opens Its Borders to Foreign Nationals
- Albert Calmette
- Albert Camus
- Albert Kesselring
- Albert Schweitzer
- Alberto Giacometti
- Alberto Santos-Dumont
- Alcide De Gasperi
- Aldo Moro Is Kidnapped and Murdered by Italian Terrorists
- Aldous Huxley
- Aleksandr Blok
- Aleksandr Fyodorovich Kerensky
- Aleksandr Ivanovich Oparin
- Aleksandr Kolchak
- Aleksandr Solzhenitsyn
- Aleksandr Stepanovich Popov
- Aleksei Brusilov
- Aleksei Kuropatkin
- Alexander Dubček
- Alexander of Tunis
- Alexandra Danilova
- Alfred Adler
- Alfred Harmsworth and Harold Harmsworth
- Alfred Hitchcock
- Alfred Jodl
- Alfred North Whitehead
- Alfred Schutz
- Alfred von Tirpitz
- Alfred Wegener
- Algeria Gains Independence
- All Quiet on the Western Front Stresses the Futility of War
- Allied Invasion of France
- Allied Invasion of Italy
