📅 Today in HistoryMarch 13

Roman emperor Elagabalus is murdered alongside his mother, Julia Soaemias. He is replaced by his 14-year old cousin, Severus Alexander.

The Battle of Badr, the first major battle between the Muslims and Quraysh.

Siege of Warangal: Sultan Ghiyath al-Din Tughluq sends an expeditionary army led by his son, Muhammad bin Tughluq, to the Kakatiya capital Warangal - after ruler Prataparudra has refused to make tribute payments. He besieges the city and finally, after a campaign of 8 months, Prataparudra surrenders on November 9.

The Battle of Oosterweel, traditionally regarded as the start of the Eighty Years' War.

At the Battle of Tondibi in Mali, Moroccan forces of the Saadi dynasty, led by Judar Pasha, defeat the Songhai Empire, despite being outnumbered by at least five to one.

Harvard College is named after clergyman John Harvard.

Nojpetén, capital of the last independent Maya kingdom, falls to Spanish conquistadors, the final step in the Spanish conquest of Guatemala.

The Battle of Cartagena de Indias (part of the War of Jenkins' Ear) begins.

William Herschel discovers Uranus.

Gustav IV Adolf of Sweden is deposed in the Coup of 1809.