Marie and Pierre Curie isolate radium in Paris, France.
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A swamp rabbit attacked President Jimmy Carter while he was fishing in Plains, Georgia.
French mathematician Pierre Louis Maupertuis began his journey to Lapland to plot the shape of the Earth.
Danica Patrick won the Indy Japan 300, becoming the first woman to win an Indy car race.
Neil Armstrong flew the X-15 craft to an altitude of 34 miles (54.6 km).
The price of a barrel of crude oil dipped below zero.
