The Republican Party nominated Abraham Lincoln for president at the 1860 Republican National Convention.
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The Crusaders lost control of the city of Acre, the Kingdom of Jerusalem's last bastion, after a fourteen-day siege.
The US Congress passed Selective Service Act.
India had their first successful nuclear bomb test.
Northern Somalia declared its independence, becoming the unrecognized de facto Republic of Somaliland.
Playwright Thomas Kyd's accusations of treason led to an arrest warrant for Christopher Marlowe, who was his roommate.