Pennsylvania History of Earth Day Fact Sheet (376.9 KiB) is an informational document that provides a comprehensive overview of the history of Earth Day in Pennsylvania. It covers the origins of Earth Day in the Keystone State, the environmental initiatives and successes of the movement, and the challenges that remain. It also includes a timeline of key events in Pennsylvania's Earth Day history, from the first Earth Day celebration in 1971 to the present day. The fact sheet is broken into three sections: “The Origins of Earth Day in Pennsylvania,” “Key Environmental Successes,” and “Remaining Challenges.” Each section provides detailed information and relevant keywords related to the topic. Additionally, the fact sheet includes a timeline of key Earth Day milestones in Pennsylvania, such as the creation of the Pennsylvania Environmental Council in 1971 and the passage of the Clean Streams Law in 1972. The fact sheet is available in PDF format and can be used as a reference for those interested in learning more about the history of Earth Day in Pennsylvania.