Task: Text Categorization
Input (English): During this battle, a bayonet charge by the 20th Maine, led by Joshua Chamberlain, helped defend one important hill. Besides Little Round Top, other areas of contest included Devil's Den and the Peach Orchard. The decisive action in this battle was a failed assault on Cemetery Ridge known as Pickett's Charge. For 10 points, name this Union victory after which Abraham Lincoln gave a namesake "address."
Output (English): History