June 1955

Thursday 02:

USSR and Yugoslavia sign the Belgrade declaration and thus normalize relations between both countries, discontinued since 1948.

Saturday 11:

Eighty-three are killed and at least 100 are injured after an Austin-Healey and a Mercedes-Benz collide at the Le Mans Grand Prix.

Tuesday 14:

Chile becomes a signatory to the Buenos Aires copyright treaty.

Wednesday 15:

The Eisenhower administration stages the first annual "Operation Alert" (OPAL) exercise, an attempt to assess the USA's preparations for a nuclear attack.

Thursday 16:

Pope Pius XII excommunicates Juan Perón