1. In 1770, the Boston Massacre occurred, which resulted in the deaths of five colonists at the hands of British soldiers. This event played a significant role in the buildup to the American Revolution and had repercussions throughout the colonies, including in Pennsylvania.

2. On March 5, 1904, the Great Fire of Baltimore broke out, destroying more than 1,500 buildings and causing over $100 million in damage. Pennsylvania played an instrumental role in responding to this disaster, as several companies from the state's fire departments traveled to Baltimore to assist in extinguishing the flames.

3. The Pennsylvania General Assembly approved a bill on March 5, 1929, that established a state park system. This legislation laid the groundwork for the creation of some of Pennsylvania's most beloved parks and recreational areas, such as Ricketts Glen State Park and Presque Isle State Park.

4. On March 5, 1963, country music legend Patsy Cline was killed in a plane crash near Camden, Tennessee. Cline had many ties to Pennsylvania, having performed at venues throughout the state and recorded multiple songs that became popular among Pennsylvanians.

5. March 5, 1987, marked the end of the Pennsylvania Railroad, one of the state's most iconic and influential companies. The railroad had been struggling financially for years, and on this day, it was absorbed into the Norfolk Southern Railway Company. Despite its demise, the Pennsylvania Railroad remains a vital part of the state's history and legacy.