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 many fewer Sauk warriors of Black Hawk's British Band. 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 Fox warriors to try to reclaim territory. 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.
During the engagement, 12 militia men were killed by Band warriors while making a stand on a small hill. The remainder of the militia fled back to Dixon's Ferry. Citizens erected a monument in 1901 in Stillman Valley, Illinois commemorating the battle. A 2006 article corroborates that militia volunteer Abraham Lincoln was present at the battleground's burials; sources agree about little else. Investigation continues in the early 21st century about facts of the skirmish.