German mathematician Carl Friedrich Gauss constructed the first heptadecagon using a ruler and a compass.
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North Carolina repealed its controversial bathroom law that restricted transgender use.
The Heinkel He 100 fighter set a world airspeed record of 463 mph (745 km/h).
The Dalai Lama received political asylum in India after fleeing from China.
An orbital-class rocket was successfully reused for the first time.
Starbucks first opened its doors in Seattle, Washington, USA.
