Curriculum - 20th & 21st Century European History
- Alvar Aalto
- Amnesty International Exposes Cruelty of Death Penalty
- Amnesty International Is Awarded the Nobel Peace Prize
- Amnesty International Is Founded
- Amnesty International Starts Program to Prevent Torture
- The Amoco Cadiz Runs Aground
- Amritsar Massacre
- An Ancient Sanctuary Is Discovered in El Juyo Cave, Spain
- André Breton
- André Gide
- André Malraux
- André-Gustave Citroën
- André-Louis Danjon
- Andrei Nikolayevich Tupolev
- Andrei Sakharov
- Andrés Segovia
- Aneurin Bevan
- Anglo-Irish Agreement Is Signed
- Anglo-Irish War
- The Anglo-Japanese Treaty Brings Japan into World Markets
- Angolan War of Independence
- Anna Akhmatova
- Anna Pavlova
- Anne Frank
- Annette C. Baier
- Annie Besant
- The Anschluss
- Anschütz-Kaempfe Installs a Gyrocompass onto a German Battleship
- Antarctic Survey Team Confirms Ozone Depletion
- Anthony Eden
- Anthropologists Discover “Lucy,” an Early Hominid Skeleton
- Anton Chekhov
- Anton von Webern
- António Egas Moniz
- Antonio Gaudí
- Antonio Gramsci
- Apollinaire Defines Cubism in The Cubist Painters
- Apollo-Soyuz Rendezvous Inaugurates International Cooperation in Space
- Arab Terrorists Kill Eleven Israeli Athletes at Munich Olympics
- Arab Terrorists Murder Israelis at Munich Olympics
- Archibald Wavell
- Armenia and Azerbaijan Sign Cease-Fire Agreement
- Armenian Earthquake Leads to Calls for Building Reform
- Armenian Genocide
- Armenian Massacres
- Armenians Suffer Genocide During World War I
- Arne Naess
- Arnold Schoenberg
- Arnold Toynbee
- Arthur Balfour
