The Territory of Arkansas was admitted to the Union as the 25th state on June 15, 1836.

Arkansas is known as "The Natural State" because of its natural scenic beauty, clear lakes and streams, and abundant wildlife. The state maintains 52 state parks and the National Park Service maintains seven properties in Arkansas.

The capital of the Arkansas Territory was moved to Little Rock from Arkansas Post in 1821. The city derived its name from a rock formation along the river, named the "Little Rock" by French explorer Jean-Baptiste Bénard de la Harpe in the 1720s.

The northern mockingbird (Mimus polyglottos) is known for its mimicking ability, as reflected by the meaning of its scientific name, "many-tongued thrush". It can sing up to 200 songs, including the songs of other birds, insect and amphibian sounds, cats and dogs, and even an occasional car alarm.

Bill Clinton was born in Hope, Arkansas on August 19, 1946. Prior to his presidency, he served as governor of Arkansas (1979-1981 and 1983-1992) and as attorney general of Arkansas (1977-1979).

The Little Rock Nine were a group of nine black students who enrolled at formerly all-white Central High School in Little Rock, Arkansas, in September 1957. Their attendance at the school was a test of Brown v. Board of Education, a landmark 1954 Supreme Court ruling that declared segregation in public schools unconstitutional.

The Dover Lights are a phenomenon that even to this day remains a mystery. The legend stretches back to a period before electricity. Many believe there was a coal mine on the hillside and that the mine collapsed one day killing several miners. The lights wandering the hill are said to be spectral light resembling the carbide lanterns used by the miners to illuminate the mine while they worked.

On July 2, 1962, Sam Walton opened the first Walmart store at 719 W. Walnut Street in Rogers, Arkansas. Within its first five years, the company expanded to 18 stores and reached $9 million in sales.

Stuttgart annually hosts the World's Championship Duck Calling Contest as part of its Wings Over the Prairie Festival. Held every Thanksgiving Week, the festival is the largest outdoor expo in the Mid-South promoting the sport of duck hunting.

Although millions of carats of diamonds are consumed each year in the United States, very few are domestically produced. The only active diamond mine in the country is the Crater of Diamonds Mine near Murfreesboro, Arkansas. The mine is a dig-for-fee operation maintained by the Crater of Diamonds State Park. Collectors pay a fee of a few dollars per day to prospect and can keep any diamonds they find.