1. In 1797, the first York County courthouse was completed in York. Prior to its completion, court was held in several different locations throughout the county.

2. On July 15, 1919, the first airmail service in the United States was launched between New York City, Philadelphia, and Washington D.C. The inaugural flight departed from Belmont Park in New York and arrived in Philadelphia three hours later.

3. The Pennsylvania Railroad's Horseshoe Curve, located in Blair County, opened on July 15, 1854. The engineering marvel was designed to help trains navigate the steep Allegheny Mountains and played a vital role in transporting goods and people across the country.

4. The legendary Hershey Park in Hershey, Pennsylvania, opened on July 15, 1907. Originally built as a leisurely retreat for Hershey Chocolate Factory employees, the park has since become one of the most popular amusement parks in the United States.

5. July 15, 1779, marked the beginning of the Battle of Stony Point during the Revolutionary War. Led by General "Mad" Anthony Wayne, a group of American soldiers successfully captured the heavily fortified British position, resulting in a significant morale boost for the Continental Army.