Northern Somalia declared its independence, becoming the unrecognized de facto Republic of Somaliland.
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President Franklin D. Roosevelt signed Tennessee Valley Act to build dams.
Britain declared war on France after Napoleon Bonaparte continued interfering in Italy and Switzerland.
India had their first successful nuclear bomb test.
The Crusaders lost control of the city of Acre, the Kingdom of Jerusalem's last bastion, after a fourteen-day siege.
The Worms massacre began.
