June 30 in history: Launch of first emergency call service, addition of leap second to world’s official clocks and more
Authored By Vyomica Berry
Published: Jun 30, 2020, 03:49 IST | Updated: Jun 30, 2020, 03:49 IST
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1859
Charles Blondin becomes the first to cross Niagara Falls on tightrope.
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1937
World's first emergency call service "999" is launched in London.
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1971
Crew of Soviet spacecraft “Soyuz 11” dies after the loss of air supply.
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1972
Leap second is added to world’s official clocks for the first time.
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2010
Nepal's PM Madhav Kumar announces his resignation in a televised speech.
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