1. In 1863, the Pennsylvania State Legislature passed the Militia Act, allowing Governor Andrew Curtin to call forth the state militia to defend against Confederate invasion during the Civil War.
2. In 1913, the first Little League baseball game was played in Williamsport, Pennsylvania.
3. In 1966, Harrisburg, Pennsylvania was hit with a record-breaking snowstorm that dumped 30 inches of snow in just 24 hours.
4. In 1987, the "Great American Meatout" was launched in Pennsylvania, promoting a plant-based diet for health and environmental reasons.
5. In 2017, police officer Keith Palmer from Lower Burrell, Pennsylvania was fatally shot while responding to a drug investigation. He was honored with a public funeral and procession, and his name was added to the National Law Enforcement Officers Memorial in Washington D.C.