First Day of Autumn Fall Equinox-day when night and day are of equal length. September (9/22/08, 9/22/09, 9/23/10, 9/23/11, 9/22/12, 9/22/13, 9/23/14, 9/23/15, 9/22/16, 9/22/17, 9/23/18, 9/23/19, 9/22/20). 1  Autumnal Equinox. 2  Fall Equinox. 3  Earth's Seasons.
Earth Day Flag created by John McConnell. Earth Day is an annual event, celebrated on April 22, on which day events worldwide are held to demonstrate support for environmental protection.hile this April 22 Earth Day was focused on the United States, an organization launched by Denis Hayes, who was the original national coordinator in 1970, took it international in 1990 and organized events in 141 nations.
Background. The April 22 Earth Day, founded by Senator Gaylord Nelson, was first organized in 1970 to promote ecology and respect for life on the planet as well as to encourage awareness of the growing problems of air, water and soil pollution.hile some people celebrate Earth Day around the time of the March Equinox, others observe the occasion on April 22 each year. Earth Day aims to inspire awareness of and appreciation for earth's environment. It's not to be confused with Earth Hour. People unite on Earth Day to appreciate and respect earth's environment.