The Ottoman Empire signed the Treaty of Adrianople with Russia, which ended the Russo-Turkish War.
Source
The Vought-Sikorsky VS-300 became the first successful helicopter to fly.
The American sitcom 'The Golden Girls' premiered on NBC.
Hindi became the official language of India.
Theodore Roosevelt became the US president after former president William McKinley died from gunshot wounds.
The people of Estonia voted to approve joining the European Union.