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March 07 in history: Patent for telephone, Varanasi blasts and more

1876
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1876

Alexander Graham Bell receives patent for telephone

1987
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1987

Mike Tyson becomes youngest heavyweight to win WBA belt

2006
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2006

28 killed in twin blasts in India's holy city Varanasi

2009
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2009

NASA releases telescope Kepler into space to find other Earths

2010
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2010

Kathryn Bigelow becomes first female director to win an Oscar