1. The Battle of Gettysburg came to an end on July 30, 1863, during the American Civil War. The three-day battle resulted in a Union victory and is considered one of the most significant events of the war.

2. The first roller coaster in the United States, called the Switchback Railway, opened in Coney Island, New York on July 30, 1884. The coaster was invented by LaMarcus Adna Thompson, a Pennsylvania native born in Jersey Shore.

3. On July 30, 1930, President Herbert Hoover signed the bill authorizing construction of the Delaware Water Gap National Recreation Area, which spans Pennsylvania and New Jersey. The area is popular for its scenic views, waterfalls, and recreational opportunities.

4. Joe Paterno, one of the most successful college football coaches in history, was born in Brooklyn, New York on July 30, 1926. Paterno spent his entire career at Penn State University, where he won two national championships and coached for 46 seasons.

5. Pennsylvania became the second state to ratify the United States Constitution on July 30, 1788. The state played a significant role in the founding of the country and hosted the signing of the Declaration of Independence in Philadelphia in 1776.