1. On September 20, 1854, the first territorial legislature of Kansas met in Pawnee, marking the beginning of the state's territorial history. This legislature's actions would have significant consequences for the state's future.

2. In 1863, the Battle of Chickamauga was fought in Georgia. Kansas troops played a significant role in this battle, which marked a turning point in the Civil War.

3. September 20, 1873, marked the birth of Ellis Parker Butler, a Kansas-born author who wrote over 30 books, including the popular children's book "Pigs is Pigs."

4. In 1903, a group of African American soldiers stationed at Fort Leavenworth, Kansas, were accused of murdering a white man. This event led to a series of court martial trials that became known as the "Brownsville Affair."

5. On September 20, 1984, a fire destroyed the downtown district of Kensington, Kansas. The town has since rebuilt, and the fire is remembered as a significant moment in the town's history.