1. In 1867, the Nebraska State Legislature officially designated March 15 as "Capitol Day," encouraging citizens to gather and celebrate the completion of the new state capitol building in Lincoln.

2. On March 15, 1885, renowned author Willa Cather was born in Winchester, Virginia. Cather later moved to Nebraska and became known for her novels set in the prairie state, including "O Pioneers!" and "My Ántonia."

3. In 1933, Nebraska Governor Charles W. Bryan signed a bill legalizing the sale of 3.2% beer in the state. This occurred on March 15, the same day that President Franklin D. Roosevelt signed a similar bill ending Prohibition at the federal level.

4. On March 15, 1971, the Nebraska Legislature passed the country's first "blue sky law," designed to protect investors from fraudulent securities offerings. The law has since been adopted by all 50 U.S. states.

5. In 2019, Nebraska celebrated its 152nd birthday on March 15. The state was admitted to the Union on March 1, 1867, but the anniversary is typically celebrated on the closest Sunday to March 1, which fell on the 17th in 2019.