First Country to Legalize Same-Sex Marriage
Event Signifying the Start of the Space Race
First Female British Prime Minister
Event Leading to End of Cold War
Chinese Cultural Revolution Start
Assassination Triggering WWI
Berlin Conference, 1884-1885
Event Symbolizing End of Soviet Control in Eastern Europe
First Man on the Moon
First Industrialized Country
Fall of the Berlin Wall
Concept of Social Contract
First African Country to Gain Independence Post-WWII
Decolonization in Africa and Asia, Peak
End of Apartheid in South Africa
9/11 Attacks Location
Declaration of the Rights of Man and of the Citizen, Year
Founder of Facebook
Event Leading to US Entry into WWII
First Use of Atomic Bomb
Axis Powers in WWII
Cuban Missile Crisis, Year
First Person in Space
D-Day Invasion, Year
Climate Change Key Agreement