When did Kentucky become a state?

Kentucky was originally declared to be a part of Virginia and was made a separate county of that state in 1776. Soon after the end of the American Revolution, a separation movement began in Kentucky. In 1792, after nine conventions to discuss the separation, Kentucky was made a separate state and was admitted to the Union as the fifteenth state. Isaac Shelby was chosen as the first governor. Kentucky's first constitution was drafted in April and May of that year (the constitution was rewritten in 1800, and again in 1850 and 1891), and Frankfort was chosen to be the Kentucky capital city. In 1818, the westernmost region of the state was annexed, following its purchase from the Chickasaw Indians.