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