The Battle of Stillman's Run, the first battle of the Black Hawk War, was fought.

The Battle of Stillman's Run, also known as the Battle of Sycamore Creek or the Battle of Old Man's Creek, occurred in Illinois on May 14, 1832. The battle was named for the panicked retreat by Major Isaiah Stillman and his detachment of 275 Illinois militia after being attacked by an unknown number of Sauk warriors of Black Hawk's British Band. The numbers of warriors has been estimated at as few as fifty but as many as two hundred participated in the attack. However, reports found in Whitney's Black Hawk War indicated that large numbers of Indians were on the move throughout the region, and it appeared that widespread frontier warfare was underway. The engagement was the first battle of the Black Hawk War (1832), which developed after Black Hawk crossed the Mississippi River from Iowa into Illinois with his band of Sauk and Meskwaki warriors along with women, children, and elders to try to resettle in Illinois. The militia had pursued a small group of Sauk scouts to the main British Band camp following a failed attempt by Black Hawk's emissaries to negotiate a truce.