Today in History–April 22–the Library of Congress features Earth Day, first celebrated on this day in 1970. Earth Day was the brainchild of Senator Gaylord Nelson of Wisconsin who wanted to raise public consciousness about air and water pollution. It is estimated that 20 million people nationwide attended events on the first Earth Day. Learn more about by visiting the Today in History section, then clicking the links below.
An Evaluation: Warren Knowles Gaylord Nelson Stewardship Program Department of Natural Resources, October 2000