1. In 1857, the territorial legislature passed a bill effectively making slavery legal in Kansas. This sparked outrage and resistance from free-state settlers, leading to the events known as "Bleeding Kansas."

2. In 1865, Union and Confederate troops clashed in the Battle of Marais des Cygnes, one of the last significant Civil War battles in Kansas. This engagement resulted in a Union victory and helped secure Kansas as a free state.

3. In 1931, the notorious "Kansas City Massacre" took place. Four law enforcement officers were killed in a botched attempt to free a gangster from custody, leading to a nationwide manhunt for the perpetrators.

4. In 1951, L. William Seidman was appointed to the Federal Deposit Insurance Corporation, a role he would hold for three decades. Seidman was a major figure in the banking and financial industry and helped shape government policy in the sector.

5. In 2013, economist Thomas Sargent gave the annual David M. Kennedy Lecture at the University of Kansas. Sargent, a Nobel Prize winner, discussed his work on macroeconomics and how it relates to current policy debates.