1. On June 13, 1842, Pennsylvania became the first state to establish a system of publicly funded schools, which ultimately served as a model for public education throughout the United States.

2. The city of Philadelphia was founded on June 13, 1683, by William Penn, the founder of Pennsylvania. The city became an important center of trade and commerce and played a key role in the American Revolution.

3. On June 13, 1912, the state of Pennsylvania adopted the bluebird as its state bird. The Eastern bluebird is a symbol of happiness and good fortune, and its adoption reflects the state's commitment to conservation and preservation of the natural environment.

4. On June 13, 1978, a massive flood swept through the city of Johnstown, Pennsylvania, killing more than 70 people and causing extensive damage to homes and businesses. The flood was caused by heavy rains and a failed dam, and it remains one of the deadliest natural disasters in Pennsylvania history.

5. Philadelphia hosted the 2001 NBA Finals on June 13 of that year, with the Philadelphia 76ers facing off against the Los Angeles Lakers. Despite a valiant effort by Sixers guard Allen Iverson, the Lakers ultimately won the series in five games, securing their second consecutive championship.