1. On March 22, 1765, the Pennsylvania Gazette announced the arrival of the first shipment of tea from China to Philadelphia. This marked the beginning of a successful trade relationship between Pennsylvania and China.

2. In 1781, the Battle of Crooked Billet took place on March 22 in Hatboro, Pennsylvania, during the American Revolutionary War. The battle was a minor but significant skirmish where American forces suffered heavy casualties.

3. March 22, 1894, marked the opening of the new Pennsylvania State Capitol building in Harrisburg, Pennsylvania. The building was designed by Joseph M. Huston and remains an iconic landmark of the state.

4. On March 22, 1951, the famous American artist, Andrew Wyeth, painted his iconic masterpiece, Christina's World, at the Olson House in Cushing, Maine. Christina's World remains one of the most recognized paintings of the 20th century.

5. In 1982, March 22 marked the official opening of the Ruth Patrick Science Education Center at the University of South Carolina Aiken. The center was named after Dr. Ruth Patrick, a renowned botanist and environmental scientist from Pennsylvania.