📅 Today in HistoryMay 31

Emperor Petronius Maximus is stoned to death by an angry mob while fleeing Rome.

Zhongdu (now Beijing), then under the control of the Jurchen ruler Emperor Xuanzong of Jin, is captured by the Mongols under Genghis Khan, ending the Battle of Zhongdu.

Mongol invasion of the Cumans: Battle of the Kalka River: Mongol armies of Genghis Khan led by Subutai defeat Kievan Rus' and Cumans.

Mongols depart Java after the failed Mongol invasion against King Kertanegara of Singhasari.

King Henry III lays the first stone of the Pont Neuf (New Bridge), the oldest bridge of Paris, France.

The pageant London's Love to Prince Henry on the River Thames celebrates the creation of Prince Henry as Prince of Wales.

Citing poor eyesight as a reason, Samuel Pepys records the last event in his diary.

American Revolution: The Mecklenburg Resolves are adopted in the Province of North Carolina.

Manuel Quimper explores the Strait of Juan de Fuca.

The United States enacts its first copyright statute, the Copyright Act of 1790.