Earth Day was originally intended to be on the first day of Spring in the Northern Hemisphere, the “Vernal Equinox” (usually March 20 or 21). The reason is that being an astronomical event untied to any government or nation, people everywhere who celebrated it would recognize we are all in the same situation when it comes to preserving the ecosystem of the planet. Earth is the source of life for every human being.
It was changed to April 22 by wealthy and powerful American operatives who wanted to use the issue of environmental preservation as a tool to for furthering their political agenda within the United States.
The idea was first proposed at a UNESCO meeting by John McConnell in 1969 and celebrated in New York and California in the Spring of the following year. Beginning in 1971, it became an official annual event at the United Nations.
The reason for making April 22 into “Earth Day” was originally because that is when college students are usually on “Spring Break” and a group of environmental activists had been holding an “environmental teach-in” around then. They asked McConnell to change the date, but he refused for obvious reasons.
So, why not change the date back to the Vernal Equinox? Because those in power do not want the public to experience the purpose of Earth Day – recognition that the source of everyone’s life is under our feet.