1. In 1812, the Arkansas Territory was established by the United States Congress. The territory was the predecessor to the state of Arkansas, which was admitted to the Union in 1836.

2. On November 27, 1862, a Civil War battle known as the Battle of Prairie Grove took place in northwest Arkansas. The battle was a strategic victory for the Union forces and helped to secure their presence in the state.

3. In 1909, the Arkansas State Capitol building was dedicated in Little Rock. The building, which still serves as the state's capitol, features a distinctive dome that is one of the key landmarks of the city.

4. On November 27, 1912, Arkansas elected its first female state senator, Hattie Caraway. Caraway went on to become the first woman elected to the United States Senate.

5. In 1998, former Arkansas governor and presidential candidate Bill Clinton was impeached by the U.S. House of Representatives. The impeachment would lead to a trial in the Senate, where Clinton was ultimately acquitted.