WHAT ALL HAPPENED MAY TO AUGUST 1955
Find out what all happened May to August 1955

Black teenager Emmett Till is brutally murdered in Mississippi, galvanizing the nascent American Civil Rights Movement. (28. August 1955)

Mir Mine, the first diamond mine in the USSR, is discovered. (13. June 1955)

Austria regains its independence as the Allied occupation following World War II ends. (12. May 1955)

First ascent of Kangchenjunga (8,586 m.), the third-highest mountain in the world, by a British expedition led by Charles Evans. Joe Brown and George Band reached the summit on May 25, followed by Norman Hardie and Tony Streather the next day. (25. May 1955)

In a futile effort to topple President Juan Perón, rogue aircraft pilots of the Argentine Navy drop several bombs upon an unarmed crowd demonstrating in favor of Perón in Buenos Aires, killing 364 and injuring at least 800. At the same time on the ground, some forces soldiers attempt to stage a coup but are suppressed by loyal forces. (16. June 1955)

The Union Mundial pro Interlingua is founded at the first Interlingua congress in Tours, France. (28. July 1955)

The Allied occupation of Austria stemming from World War II, ends. (27. July 1955)

The Russell–Einstein Manifesto is released by Bertrand Russell in London, England, United Kingdom. (9. July 1955)

In Morocco, a force of Berbers from the Atlas Mountains region of Algeria raid two rural settlements and kill 77 French nationals. (20. August 1955)

The South African Congress Alliance adopts the Freedom Charter at the Congress of the People in Kliptown. (26. June 1955)

The USSR and Yugoslavia sign the Belgrade declaration and thus normalize relations between both countries, discontinued since 1948. (2. June 1955)

Disneyland is dedicated and opened by Walt Disney in Anaheim, California. (17. July 1955)

In the United States, a night-time F5 tornado strikes the small city of Udall, Kansas, killing 80 and injuring 273. It is the deadliest tornado to ever occur in the state and the 23rd deadliest in the U.S. (25. May 1955)

Cold War: West Germany joins NATO. (9. May 1955)

Cold War: Eight Communist bloc countries, including the Soviet Union, sign a mutual defense treaty called the Warsaw Pact. (14. May 1955)

Eighty-three spectators are killed and at least 100 are injured after an Austin-Healey and a Mercedes-Benz collide at the 24 Hours of Le Mans, the deadliest ever accident in motorsports. (11. June 1955)

In the Northeast United States, severe flooding caused by Hurricane Diane, claims 200 lives. (19. August 1955)

Eighteen Nobel laureates sign the Mainau Declaration against nuclear weapons, later co-signed by thirty-four others. (15. July 1955)

Tokyo Telecommunications Engineering, the precursor to Sony, sells its first transistor radios in Japan. (7. August 1955)

Chile becomes a signatory to the Buenos Aires copyright treaty. (14. June 1955)