You will be given a definition of a task first, then some input of the task.
Given a text passage, come up with an appropriate title for it. The title should accurately represent what the main focus of the passage is. The title of a passage may be present in the first few sentences of the passage and/or be referred to multiple times in the passage. The title should be 1-5 words long.

The Battle of Antietam / ntitm / , also known as the Battle of Sharpsburg , particularly in the Southern United States , was fought on September 17 , 1862 , between Confederate General Robert E. Lee 's Army of Northern Virginia and Union General George B. McClellan 's Army of the Potomac , near Sharpsburg , Maryland and Antietam Creek as part of the Maryland Campaign . It was the first field army -- level engagement in the Eastern Theater of the American Civil War to take place on Union soil and is the bloodiest single - day battle in American history , with a combined tally of 22,717 dead , wounded , or missing .
Output:
Battle of Antietam