The Gunfight at the O.K. Corral took place at about 3:00 PM on Wednesday, October 26, 1881, in Tombstone, Arizona Territory. It is generally regarded as the most famous gunfight in the history of the American Old West.

The gunfight, believed to have lasted only about 30 seconds, was fought between the outlaw Cowboys Billy Clanton, Tom McLaury and his brother Frank McLaury, and the opposing lawmen Virgil Earp and his brothers Morgan and Wyatt Earp, aided by Doc Holliday acting as a temporary deputy of Virgil.

Cowboys Ike Clanton and Billy Claiborne ran from the fight unharmed, but Ike's brother Billy Clanton was killed, along with both McLaurys. Lawmen Holliday and Morgan and Virgil Earp were wounded. Only Wyatt Earp came through the fight unharmed.

About 30 shots were fired in 30 seconds.

Ike Clanton filed murder charges against the Earps and Doc Holliday but they were eventually exonerated by a local judge after a 30-day preliminary hearing and then again by a local grand jury.

On December 28, 1881, Virgil Earp was maimed in an assassination attempt by the outlaw Cowboys, and on March 18, 1882, they assassinated Morgan Earp.

This led to a series of further killings and retributions, with federal and county lawmen supporting different sides of the conflict, which became known as the Earp Vendetta Ride.

Source: Wikipedia