1. In 1800, the first official census of the United States was conducted, including Pennsylvania. The population of Pennsylvania at the time was 602,365 people.

2. On April 24, 1850, the first practical steam fire engine was put into service in Philadelphia. This new technology revolutionized fire fighting in the city and enabled firefighters to respond to emergencies more quickly and efficiently.

3. In 1877, the Grange Fair, one of the oldest fairs in Pennsylvania, was founded. Originally known as the Centre County Agricultural Society Fair, the event has grown to become a major annual celebration of agriculture and rural life in Pennsylvania.

4. On April 24, 1915, the Pennsylvania State Police were established. The state police force was created to provide law enforcement services to the state's rural areas, where local law enforcement was often nonexistent or ineffective.

5. In 1935, the Pennsylvania Turnpike, the nation's first superhighway, opened to traffic. The 160-mile-long toll road stretched from Carlisle to Irwin and helped to revolutionize transportation in Pennsylvania and the United States as a whole. Today, the Turnpike is a critical part of Pennsylvania's transportation infrastructure, serving millions of drivers each year.