1. In 1874, an infamous tornado outbreak struck Kansas on April 25, causing extensive damage and loss of life. This devastating event became known as the "Kansas Tornado Outbreak of 1874" and is one of the deadliest tornado outbreaks in U.S. history.

2. In 1910, the first ever aerial violation of U.S. airspace occurred in Kansas on April 25. Army Lieutenant Benjamin D. Foulois, flying a Wright biplane, violated restricted airspace over Fort Riley in a demonstration of the potential of aviation for military purposes.

3. On April 25, 1933, a tornado struck the small town of Humboldt, Kansas, causing widespread destruction and killing 15 people. The tornado was part of a severe weather outbreak that affected several states in the Midwest.

4. In 1953, the Kansas Legislature designated April 25 as "Flag Day" in honor of the adoption of the U.S. flag. This day is now celebrated annually across the state, with special programs and events focused on the importance of the flag as a symbol of our nation.

5. On April 25, 1990, the deadliest tornado in Kansas history struck the small town of Hesston, killing 9 people and causing over $100 million in damage. The F5 tornado was part of a larger outbreak that affected several states in the central U.S.