The Ottoman Empire signed the Treaty of Adrianople with Russia, which ended the Russo-Turkish War.
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The Vought-Sikorsky VS-300 became the first successful helicopter to fly.
14-year-old Ahmed Mohamed was arrested at school after bringing in a homemade clock, which was mistaken for a bomb.
Boston Light was illuminated for the first time.
The Luna 2 spacecraft by the Soviet Union became the first human-made artifact to land on the moon's surface.
The IBM 305 RAMAC commercial computer was announced to the public.
