1. Nebraska became a state on November 21, 1867, after Congress passed the enabling act earlier that year. This made Nebraska the 37th state in the United States.

2. November 21, 1935, was the day that Nebraska's first state park, Chadron State Park, was established. Located in the northwest corner of the state, the park is known for its rugged beauty and scenic vistas.

3. In 1972, a major winter storm hit Nebraska on November 21, bringing heavy snow and high winds that caused widespread damage and power outages. The storm was part of a larger system that affected much of the Midwest and caused several deaths.

4. On November 21, 1962, a fire broke out at the Maupin Brothers sawmill in Omaha, causing $2.5 million in damage and killing six people. The fire was one of the worst industrial disasters in Nebraska history.

5. November 21, 1980, saw the premiere of the movie "The Day After" on ABC television. The movie, which depicted the aftermath of a nuclear war and was set in Lawrence, Kansas, caused controversy and debate at the time and remains a powerful reminder of the Cold War era.