Gunfight at the O.K. Corral
The gunfight at the O.K. Corral pitted lawmen against members of a loosely organized group of cattle rustlers and horse thieves called the Cochise County Cowboys on October 26, 1881. While lasting less than a minute, the gunfight has been the subject of many books and films.
Source: Wikipedia — Gunfight at the O.K. Corral (CC BY-SA 4.0)