1. On April 14, 1775, the Pennsylvanian city of Carlisle was established. It was named after the town in England where the Penn family had its roots.

2. April 14, 1865, is a significant day for Pennsylvania as it marks the day Abraham Lincoln was assassinated. Lincoln was shot by John Wilkes Booth at Ford's Theatre in Washington D.C. and died the following day. Lincoln had strong ties to Pennsylvania and gave a number of speeches in the state during his presidency.

3. Another notable event in Pennsylvania history that occurred on April 14 was the birth of William Penn in 1644. Penn is the founder of Pennsylvania and played a crucial role in the development and growth of the state.

4. On April 14, 1927, a devastating flood hit Pittsburgh, Pennsylvania. The flood killed 45 people and caused an estimated $250 million in damage. It remains one of the worst natural disasters in Pennsylvania history.

5. April 14, 1934, is a significant day in Pennsylvania labor history. It was the day of the "Battle of Toledo," a violent confrontation between striking autoworkers and the Ohio National Guard. The battle had national implications for the labor movement and led to greater support for unionization.