May 20 in history: Blue jeans patent, first pictures of space, and more

From first prisoners arriving at the Auschwitz concentration camp to World's largest power station Three Gorges Dam opening in China, here's what happened on this day in history

1873

Levis Strauss patents Blue jeans

(Photograph:WION)

1940

The first prisoners arrive at Auschwitz concentration camp

(Photograph:WION)

1983

Car bomb planted by anti-Apartheid activists kills 19 in S. Africa

(Photograph:WION)

1990

Hubble Space Telescope sends its 1st photographs from space

(Photograph:WION)

2006

World's largest power station Three Gorges Dam opens in China

(Photograph:WION)

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