1. Arkansas became the 25th state in the United States on December 5, 1836. This transformation officially made the region known as the Arkansas Territory a state. It is known as "the natural state" and is home to the Ozark Mountains and Hot Springs National Park.

2. Little Rock was incorporated as a city on December 5, 1831, making it the state's capital. Little Rock has played a significant role in the state's history, particularly during the Civil Rights Movement of the 1950s and 1960s.

3. One of the deadliest tornado outbreaks in Arkansas history occurred on December 5, 1953. The tornadoes caused over $4 million in damages and claimed the lives of 14 people. It was a significant weather event that still resonates today.

4. On December 5, 1988, Arkansas Governor Bill Clinton announced that he would seek the Democratic nomination for President of the United States. Clinton went on to win the nomination and became the 42nd President of the United States in January 1993.

5. On December 5, 2011, Arkansas' longest-serving governor, Orville Faubus, was officially pardoned by outgoing Governor Mike Huckabee. Faubus famously refused to allow black students to attend Little Rock Central High School in 1957, leading to a showdown with the federal government and the National Guard. His pardon was controversial and sparked heated discussions about his legacy.

In conclusion, December 5 has played a vital role in Arkansas history, from the state's incorporation to significant weather events, political milestones, and even controversies. These events have guided and shaped the state into what it is today.