On This Day: September 30th

War of the Austrian Succession: France and Spain defeat Sardinia at the Battle of Madonna dell'Olmo, but soon have to withdraw from Sardinia.

The Lebanese Council of 1736 begins, a major turning point in the reform of the Maronite Church. In the following three days, the assembled Maronite and Latin clergy presided by Yusuf ibn Siman as-Simani discuss various reforms and elaborate rules and canons.

A coup by the military establishment of Japan's Ōuchi clan forces their lord to commit suicide, and their city is burned.

Spanish conquistador Hernando de Soto and his forces enter Tula territory in present-day western Arkansas, encountering fierce resistance.

Suleiman the Magnificent becomes sultan of the Ottoman Empire.

Henry IV is proclaimed king of England.

Battle of Morlaix is fought in the Hundred Years' War.

A magnitude 7.7 earthquake strikes the Caucasus mountains in the Seljuk Empire, causing mass destruction and killing up to 300,000 people.

The Turgesh drive back an Umayyad invasion of Khuttal, follow them south of the Oxus, and capture their baggage train.

The Ostrogoths under Theoderic the Great defeat the forces of Odoacer for the second time.