Daily
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| 1968 |
| 1970 |
| 1975 |
| 1977 |
Your answer was: 1970. |
Answer: The original Earth Day was in 1970. In 2020 the Vatican Post Office issued a set of stamps to commemorate the 50th anniversary of the first Earth Day. The stamps were designed by Joyce Chiarella who "... aims to seek and simultaneously represent everywhere the beauty and harmony of creation...". 
50th Anniversary Of Earth Day Scott 1739 (below), 1739a &1739b (above) (2009) 
• 50th Anniversary Of Earth Day UFN Bulletin BF02 2020 • James C. HamilitonVatican City New Issues: February 2020 Vatican Notes Volume 68 Issue 384 Year 2020 Pages 3-5 |
