April 20 in history: Discovery of radium, first successful organ replacement and more

From to discovery of radium to the first successful organ replacement, we've got all covered!

Let's dive into today's history.

1902

Pierre and Marie Curie discover radium.

(Photograph:WION)

1951

Dan Gavriliu performs first successful organ replacement.

(Photograph:WION)

1978

Soviet air defence shoots down Korean Air Lines Flight 902.

(Photograph:WION)

2008

Danica Patrick becomes first woman to win IndyCar race.

(Photograph:WION)

2010

The Deepwater Horizon oil rig explodes, kills 11.

(Photograph:WION)

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