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The concept of Earth Day was established in 1969 at a UNESCO Conference in San Francisco. On March 21, 1970, a sanctioned Proclamation was signed by Secretary General U Thant at the United Nations. On April 22, 1970, U.S. Senator Gaylord Nelson founded Earth Day.
NATIONAL EARTH DAY - April 22
Posted from nationaldaycalendar.comPosted in these groups: 
Environment
Environment
Posted 8 y ago
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