Paul Ulrich Villard, French chemist and physicist (d. 1934)
Paul Ulrich Villard (28 September 1860 – 13 January 1934) was a French chemist and physicist. He discovered gamma rays in 1900 while studying the radiation emanating from radium.

1860Sep, 28
Paul Ulrich Villard
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Meeting of Teano. Giuseppe Garibaldi, conqueror of the Kingdom of the Two Sicilies, gives it to King Victor Emmanuel II of Italy.

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