1. Kansas became a state: December 1, 1861, is the day when Kansas officially joined the United States as the 34th state. It was a significant milestone in Kansas' history and marked the end of a long and tumultuous journey toward statehood. The state's first governor, Charles L. Robinson, took the oath of office shortly after the state was admitted.

2. Lawrence massacre: On December 1, 1856, a vigilante group led a brutal attack on the town of Lawrence, Kansas, in response to the town's anti-slavery stance. The event, known as the Lawrence massacre, left several people dead, and many buildings were destroyed. The incident was one of the many violent clashes between pro-slavery and abolitionist forces in Kansas during the Civil War era.

3. Amelia Earhart's birthplace: Amelia Earhart, the famous aviator who became the first woman to fly solo across the Atlantic, was born in Atchison, Kansas, on December 1, 1897. The town celebrates her life and legacy through the Amelia Earhart Festival, held annually in July.

4. Kansas City Royals win the World Series: On December 1, 2015, the Kansas City Royals won their first World Series championship in 30 years. The Royals defeated the New York Mets in five games to clinch the title. The team's victory brought a sense of pride and joy to the city, and thousands of fans celebrated the win at a parade the next day.

5. Wichita State University shooting: On December 1, 1997, a gunman opened fire in the library of Wichita State University, killing three people and injuring five others. The tragedy shook the campus and the community, and many years later, the university erected a memorial to honor the victims and remind people of the importance of campus safety.