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Jun 16, 1541
First European Explores
Hernando de Soto of Spain was the first European to explore Arkansas. -
Bought By The U.S.
The United States purchases the Louisiana Territory from France, which had retaken it from Spain as part of the Treaty of San Ildefonso. -
Arkansas is Made a Territory
Arkansas, which has been part of Missouri Territory since 1812, is detached and made a territory. -
Arkansas Became a State
Arkansas became the 25th state -
Battle of Pea Ridge
Battle of Pea Ridge in northwest Arkansas. A Confederate advance north is rebuffed. -
Slavery is Abolished
A unionist convention abolishes slavery in Arkansas and adopts a new constitution for the state. -
Brooks-Baxter War
Month-long "Brooks-Baxter War" between rival claimants to the governorship ends when President Ulysses S Grant orders the forces of the former to disperse. -
Diamonds Found
Diamonds found near Murfreesboro, which becomes the site of the only diamond mine in the United States. -
One Fifth of Arkansas Floods
The Mississippi River floods one-fifth of the state. -
Multi Campus System Established
The University of Arkansas establishes a multi-campus system.