📅 Today in HistorySeptember 27

William the Conqueror and his army set sail from the mouth of the Somme river, beginning the Norman conquest of England.

The Battle of Płowce is fought, between the Kingdom of Poland and the Teutonic Order. The Poles are defeated but their leaders escape capture.

After the brief Gollub War, the Teutonic Knights sign the Treaty of Melno with Poland and Lithuania.

The Siege of Vienna begins when Suleiman I attacks the city.

The Society of Jesus (Jesuits) receives its charter from Pope Paul III.

The armies of Sweden are defeated by the Polish-Lithuanian Commonwealth in the Battle of Kircholm.

The Venetians surrender the fortress of Candia to the Ottomans, thus ending the 21-year-long Siege of Candia.

American Revolution: Lancaster, Pennsylvania becomes the capital of the United States for one day after Congress evacuates Philadelphia.

The National Assembly of France votes to award full citizenship to Jews.

The Army of the Three Guarantees triumphantly enters Mexico City, led by Agustín de Iturbide. The following day Mexico is declared independent.