This Week in Princeton History for April 22-28

In this week’s installment of our recurring series bringing you the history of Princeton University and its faculty, students, and alumni, Earth Day is observed for the first time, professors hold a rummage sale to raise money for the ambulance corps in France, and more.

April 22, 1970—Princeton Ecology Action leads the University’s first celebration of Earth Day.

Princeton Ecology Action’s 1970 Earth Day program. Office of Communications Records (AC168), Box 26.

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