1. In 1867, Nebraska was officially admitted as the 37th state of the United States on June 13th. This date marks an important milestone in the state's history, as it was the first state in the Great Plains region to join the Union.

2. On June 13, 1874, the famous Indian Chief, Red Cloud, along with a group of Sioux leaders, traveled to Washington D.C. to meet with President Ulysses S. Grant. Their goal was to negotiate new agreements with the government that would protect their rights and land in Nebraska.

3. In 1944, a major flood hit the state of Nebraska on June 13th, causing significant damage and loss of life. The flood was caused by heavy rain and snowmelt from the nearby mountains, and resulted in the destruction of homes, bridges, and other infrastructure.

4. On June 13, 2007, the Nebraska Cornhuskers won their second straight NCAA Division I baseball championship. The championship game was held in Omaha, Nebraska, and marked a significant achievement for the team and the state as a whole.

5. In 2019, Nebraska Governor Pete Ricketts declared June 13th to be 'Nebraska Beef Day' in honor of the state's thriving beef industry. Nebraska is one of the largest beef producing states in the country, and the industry plays an important role in the state's economy and culture.