WHAT HAPPENED ON 18. SEPTEMBER
Want to find out what all happened on 18. September

Tiberius is confirmed as Roman Emperor by the Roman Senate following the natural death of Augustus (18. September 14)

Nerva is proclaimed Roman Emperor after Domitian is assassinated. (18. September 96)

Constantine the Great decisively defeats Licinius in the Battle of Chrysopolis, establishing Constantine's sole control over the Roman Empire. (18. September 324)

Philip Augustus becomes king of France. (18. September 1180)

In the Battle of Chojnice, the Polish army is defeated by the Teutonic army during the Thirteen Years' War. (18. September 1454)

Christopher Columbus lands at Honduras on his fourth, and final, voyage. (18. September 1502)

Holy Roman Emperor Ferdinand II of Austria declares war on France. (18. September 1635)

New Hampshire becomes a county of the Massachusetts Bay Colony. (18. September 1679)

George I arrives in Great Britain for the first time since becoming king on August 1st. (18. September 1714)

The Treaty of Belgrade is signed, ceding Belgrade to the Ottoman Empire. (18. September 1739)

Seven Years War: the British capture Quebec City. (18. September 1759)

The first cornerstone of the Capitol building is laid by George Washington. (18. September 1793)

The Royal Opera House in London opens. (18. September 1809)

First Government Junta in Chile. Though supposed to rule only in the absence of the king, it is in fact the first step towards independence from Spain, and is commemorated as such. (18. September 1810)

The 1812 Fire of Moscow dies down after destroying more than three-quarters of the city. Napoleon returns from the Petrovsky Palace to the Moscow Kremlin, spared from the fire. (18. September 1812)

Tiffany and Co. (first named Tiffany & Young) is founded by Charles Lewis Tiffany and Teddy Young in New York City. The store is called a "stationery and fancy goods emporium". (18. September 1837)

The Anti-Corn Law League is established by Richard Cobden. (18. September 1838)

The U.S. Congress passes the Fugitive Slave Law of 1850. (18. September 1850)

First publication of The New-York Daily Times, which later becomes The New York Times. (18. September 1851)

Old Faithful Geyser is observed and named by Henry D. Washburn during the Washburn-Langford-Doane Expedition to Yellowstone. (18. September 1870)