1955

1955 (MCMLV) was a common year starting on Saturday of the Gregorian calendar, the 1955th year of the Common Era (CE) and Anno Domini (AD) designations, the 955th year of the 2nd millennium, the 55th year of the 20th century, and the 6th year of the 1950s decade.

February 12 – U.S. President Dwight D. Eisenhower sends the first U.S. advisors to South Vietnam. Ray Kroc opens his first McDonald's in Des Plaines, Illinois. May 5 – West Germany becomes a sovereign country recognized by important Western foreign countries, such as France, the United Kingdom, Canada, and the United States. May 6 – Western European Union charter effective. May 7 – The last time Newcastle United won a domestic title. May 9 – West Germany joins the North Atlantic Treaty Organization (NATO ). May 11 – Japanese National Railways' ferry Shiun Maru sinks after collision with sister ship Uko Maru in thick fog off Takamatsu, Shikoku, in the Seto Inland Sea of Japan; 166 passengers (many children) and two crew are killed. This event is influential in plans to construct the Akashi Kaikyō Bridge (built 1986-98). May 12– New York's Third Avenue Elevated runs its last train between Chathem Square in Manhattan and East 149th Street in the Bronx, thus ending elevated train service in Manhattan. May 14 – Eight Communist Bloc countries, including the Soviet Union, sign a mutual defence treaty in Warsaw, Poland, that is called the Warsaw Pact. It will be dissolved in 1991. May 15 – Austrian State Treaty, which restores Austria's national sovereignty, is concluded between the four occupying powers following World War II (the United Kingdom, the United States, the Soviet Union , and France) and Austria, setting it up as a neutral country. May 25 – Joe Brown and George Band are the first to attain the summit of Kangchenjunga in the Himalayas, as part of a British team led by Charles Evans.

Operation Armadillo agents fight with aliens in the Himalayas.