The first Earth Day celebration, a nationwide environmental teach-in held in 1970, was the brainchild of Democratic Senator Gaylord Nelson of Wisconsin, who was interested in environmental issues.
earth day
Eight years after Rachel Carson's bestseller Silent Spring sold half a million copies and turned environmental protection into a cultural juggernaut, Earth Day was inaugurated as an annual event.
“The Endangered Species Act of 1973 (ESA or "The Act"; 16 U.S.C. § 1531 et seq.) is the primary law in the United States for protecting imperiled species.