1. 1857: First Kansas Constitution adopted
On March 25, 1857, the first Kansas Constitution was adopted in the town of Lecompton after several attempts to draft a constitution that would allow Kansas to become a state without the issue of slavery causing controversy.

2. 1897: Medicine Lodge Peace Treaty Signing Site Established
On March 25, 1897, the Medicine Lodge Peace Treaty Signing Site was established in Medicine Lodge, Kansas. This treaty is considered one of the most significant events in the history of the Indian Wars as it brought together leaders of many tribes to sign an agreement with the US government.

3. 1912: Osawatomie State Hospital Opens
On March 25, 1912, the Osawatomie State Hospital opened its doors to patients suffering from mental illnesses. At the time, it was the largest public mental health facility in the state of Kansas.

4. 1938: Hesston College Founded
On March 25, 1938, Hesston College was founded in Hesston, Kansas. It was established as a Mennonite college and remains a small institution to this day.

5. 1965: National Agricultural Hall of Fame Opens
On March 25, 1965, the National Agricultural Hall of Fame opened its doors in Bonner Springs, Kansas. The Hall of Fame recognizes individuals who have made significant contributions to agriculture in the United States.