International Earth Day celebrated on March 20th USL March 18, 2015 USL Stories International Earth Day was initiated to make earth inhabitants aware of their responsibility to care for the planet. This care includes environmental and natural resources. International Earth Day was founded by John McConnell, of Davis City, Iowa. In September, 1969, he proposed the establishment of Earth Day to the San Francisco, California Board of Supervisors. After approval, he gained support from many others, including then UN General Secretary, U Thant. In 1970, McConnell wrote an Earth Day Proclamation which was ultimately signed by UN Secretary General U Thant on March 21, 1971. This day is also called Sun-Earth Day Important Note: International Earth Day is different from the U.S. Earth Day. Leave a Reply Cancel ReplyYou must be logged in to post a comment.