On this day:
1960: Theodore Maiman fires the first functional laser
1975: Sikkim becomes a part of India
1975: Junko Tabei becomes the first woman to conquer Mount Everest
2003: Calcutta high court rules Calcutta does not have a birthday and that British East India employee Job Charnock is not the city’s founder as previously claimed
Born on this day:
1831: David Edward Hughes, Welsh/American scientist, co-invented the microphone
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