The Homestead Act opens up settlement in the western U.S. by allowing any adult American to claim up to 160 acres of free federal land. 15,000 claims are made by the end of the Civil War.
The Five Civilized Tribes are forced to cede large portions of their land, including the Unassigned Lands, to the U.S. Government for relocation of other Native American nations.
Boomers begin attempts to settle in the Unassigned Lands. The U.S. military repeatedly forces them out.
The Santa Fe Railroad from Kansas to Texas is completed. Multiple stops are opened in the Unassigned Lands.
Creek and Seminole Nations release claims to the Unassigned Lands, and Congress approves opening the land for settlement.
"Boomer camps" pop up along and inside the borders of the Unassigned Lands.
President Harrison's Proclamation sets the time and date for the Land Run.
Prospective settlers are escorted from the Kansas and Texas borders to the perimeter of the Unassigned Lands. Those already inside are required to leave.
Land east of the railroad tracks at Oklahoma Station is reserved for military use.
Oklahoma Land Run officially begins.11