1. In 1789, George Washington was inaugurated as the first President of the United States in New York City. However, on the same day, the Pennsylvania House of Representatives and Senate met for the first time in Philadelphia as the state's capital.

2. The Battle of Jenkins' Ferry took place on April 30, 1864 during the American Civil War. The battle occurred in Grant County, Arkansas and was a result of Confederate forces trying to stop Union troops from crossing the Saline River.

3. On April 30, 1927, the Pennsylvania Turnpike Commission was created. The Pennsylvania Turnpike is one of the oldest and longest toll highways in the United States, spanning over 360 miles and serving millions of drivers each year.

4. Pennsylvania native, Benjamin Franklin, was born on January 17, 1706. However, April 30, 1789 marked the 83rd anniversary of his death. Franklin was a renowned polymath, inventor, and statesman, and his contributions to science and society are still celebrated today.

5. In 1972, the first Earth Day was celebrated on April 30th. The holiday was created to raise awareness about environmental issues and inspire action to protect the planet. Today, millions of people around the world participate in Earth Day activities and events each year.