1. Arkansas became a state: On November 12, 1836, Arkansas officially became the 25th state in the United States.

2. First African American elected to U.S. Senate: On November 12, 1872, Joseph Brooks became the first African American to be elected to the U.S. Senate. Brooks was elected by the Arkansas General Assembly to fill a vacant seat.

3. Arkansas joins the Confederacy: On November 12, 1861, Arkansas joined the Confederate States of America, seceding from the United States. This decision led to the state's involvement in the Civil War.

4. USS Arkansas commissioned: On November 12, 1912, the USS Arkansas battleship was commissioned by the United States Navy. The ship was named in honor of the state of Arkansas and served during both World War I and World War II.

5. Razorbacks defeat Ole Miss: On November 12, 1960, the University of Arkansas Razorbacks football team defeated the Ole Miss Rebels with a score of 10-0. This victory helped propel the Razorbacks to a conference championship and a trip to the Sugar Bowl.