World Events · 1951
Cold War Escalates and Global Coalitions Form
The year 1951 deepened Cold War anxieties as fighting raged on the Korean Peninsula and atomic espionage trials shook the West. Meanwhile, historic post-war treaties forged new international alliances and laid the groundwork for European integration.
- April 11, 1951 | United States & Korea
Truman Dismisses General MacArthur
President Harry S. Truman abruptly relieves General Douglas MacArthur of his command in Korea following public disputes over the war's strategy and expansion into China.
- April 18, 1951 | Western Europe
Treaty of Paris Establishes the ECSC
Six European nations sign the landmark treaty creating the European Coal and Steel Community, laying the structural foundation for the modern European Union.
- May 1, 1951 | Iran
Iran Nationalizes Its Oil Industry
Iranian Prime Minister Mohammad Mosaddegh leads the nationalization of the Anglo-Iranian Oil Company, triggering a major international geopolitical crisis with Great Britain.
- September 8, 1951 | United States
Treaty of San Francisco Signed with Japan
Forty-eight nations sign a peace treaty with Japan, officially ending World War II in the Pacific and restoring Japanese sovereignty while ending Allied occupation.
- April 5, 1951 | United States
Rosenbergs Sentenced to Death for Espionage
Julius and Ethel Rosenberg are sentenced to death in a New York federal court after being convicted of passing top-secret nuclear weapons intelligence to the Soviet Union.
- February 27, 1951 | United States
US Ratifies the 22nd Amendment
The United States formally limits future presidents to serving a maximum of two terms following the four consecutive presidential victories of Franklin D. Roosevelt.
- March 31, 1951 | United States
First UNIVAC I Computer Delivered
The United States Census Bureau accepts delivery of UNIVAC I, launching the commercial computing age with the first mass-produced business computer.
- May 3, 1951 | United Kingdom
The Festival of Britain Opens in London
King George VI opens a national exhibition showcasing British achievement in science, technology, arts, and industrial design to foster post-war optimism across the nation.
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