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1949 - Hungary (Magyar People's Republic) accepts constitution.

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1953 - Birth of Peter Horton in Bellevue, Washington, USA; actor (Gary-30 Something).

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1953 - The Soviet Union acknowledges that it had tested the hydrogen bomb.

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1955 - First airplane to exceed 1800 mph (2897 kph) - HA Hanes, Palmdale, California, USA.

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1955 - Birth of Jay Acovone in Mahopac, New York, USA; actor (Det Rado - Hollywood Beat).

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1955 - Hundreds killed in anti-French rioting in Morocco and Algeria.

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1956 - The Calder Hall atomic power station begins operation in Cumberland, Great Britain, generating up to 90,000 kilowatts of power and manufacturing plutonium.

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1957 - Birth of Cindy Nicholas in Canada; swimmer, swam English Channel 19 times.

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1957 - Birth of Jim "Bullseye" Bowen; British TV game show host.

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1957 - US Air Force balloon breaks an altitude record at 102,000 feet (310,896 metres).

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