The Dalai Lama received political asylum in India after fleeing from China.
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Ether was used as an anesthetic for the first time, by American surgeon Crawford Long, in Athens, Georgia.
German mathematician Carl Friedrich Gauss constructed the first heptadecagon using a ruler and a compass.
The US adopted the 15th Amendment, guaranteeing citizens the right to vote.
North Carolina repealed its controversial bathroom law that restricted transgender use.
The United States bought Alaska from the Russian Empire.
