What are sooners?

Answer 1

In Oklahoma, sooners are well known because they are the mascot of the Oklahoma University football team. However, most people do not know that the sooners were cheaters in the land run. The sooners went out and claimed their land before the legal start of the land run. If the sooners were discovered, they were forced to give up their illegally claimed land.

Answer 2

Sooners are people who entered the district illegally to lay claim to lands, before the designated entry time.