PENNSYLVANIA GAZETTE • April 21, 2020
“There is power here in the slopes of this park, in the hearts and by the concern of those gathered here today,” said Edmund Muskie, a US senator from Maine, as he addressed a crowd of nearly 30,000 in Fairmount Park. It was Philadelphia’s first Earth Day: April 22, 1970. And it was the culmination of Earth Week, a pumped-up celebration of the environment, founded, in part, by Penn students 50 years ago.