Brief History of Arkansas

In 1803, the Louisiana Purchase was acquired by the
United States, and, in 1819, Arkansas was organized as a territory. Its northern, eastern and southern borders were the same as they are now, but to the west, some of what is now Oklahoma was included. Two years later, in 1821, the territorial capital was moved from Arkansas Post to Little Rock.
By 1836, the Arkansas Territory had the 60,000 residents required to become a state, and after writing an acceptable constitution, was declared the 25th state in the United States.