1. ON DECEMBER 22, 1701, Philadelphia was named the capital of Pennsylvania in a move that solidified the city's political power. Prior to this, various government meetings had been held in Philadelphia, but the city was not formally recognized as the capital until this date.

2. IN 1776, THE CONTINENTAL ARMY suffered a significant defeat at the Battle of Trenton, an outcome that could have ended the American Revolution. However, George Washington's subsequent successful attack on British forces at Princeton on December 22 breathed new life into the struggling army and provided a much-needed boost of morale.

3. ON DECEMBER 22, 1808, Pennsylvania governor Simon Snyder approved a law banning the importation of slaves into the state. The law was seen as progressive for its time, and Pennsylvania later became a crucial center of the Underground Railroad, a network that helped fugitive slaves escape to freedom.

4. IN 1966, the inaugural meeting of the Pennsylvania Historical and Museums Commission took place in Harrisburg on December 22. The commission was established to oversee the preservation and promotion of the state's history, and it continues to play an important role in maintaining Pennsylvania's heritage.

5. ON DECEMBER 22, 1982, a massive snowstorm hit Pennsylvania that paralyzed the state for days. The storm dumped over two feet of snow in some areas and caused widespread power outages and travel disruptions. Despite the damage, many Pennsylvanians look back on the storm with fondness, as it provided an opportunity for neighbors to come together and help each other through the difficult conditions.