1. On October 28, 1881, the famous gunfight at the O.K. Corral took place in Tombstone, Arizona. This gunfire incident involved Wyatt Earp, Doc Holliday, and the Clanton gang, resulting in the death of three outlaws.

2. In 1913, the first airplane flight in Arizona took place on October 28 in Phoenix. A pilot named Lincoln Beachey flew his Curtiss biplane from Riverside Park over the city, doing loops and spins that amazed onlookers below.

3. On October 28, 1971, the Phoenix Suns played their first-ever NBA game. The Suns lost to the Seattle Supersonics at home at the Veterans Memorial Coliseum, but the game marked the beginning of a long and exciting history for the Phoenix NBA team.

4. In 1983, Danny White, the quarterback for the Arizona Wranglers of the USFL, set a record for most career touchdown passes in professional football. He achieved this on October 28 in a game against the Michigan Panthers, cementing his place in Arizona football history.

5. On October 28, 2011, a unique event happened in Tucson, Arizona. Comet Elenin, which had been on a path towards Earth for several months, disintegrated as it passed by the planet. This rare astronomical event was visible to the naked eye and created quite a stir among amateur astronomers and space enthusiasts in Arizona and beyond.