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April 22 in history: Adolf Hitler admits defeat, signing of Paris Agreement on climate change and more

1945
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1945

World War II: Adolf Hitler admits defeat.

1977
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1977

Optical fibre is used for telephone transmissions for the first time.

1992
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1992

Sewers explode in Guadalajara, Mexico, kills more than 200.

1997
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1997

Japanese embassy hostage crisis ends after 126 days in Peru.

2016
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2016

More than 170 countries sign Paris Agreement on climate change.