Where did earth day start and when?

In 1962, there was a person from Wisconsin named Gaylord Nelson, who was troubled by the fact that the environment was not on the National Political agenda. He was the one who invented and created Earth Day.

People were starting to worry about air and water pollution. There had been a big oil spill the year before in Santa Barbara, California, and US Senator Gaylord Nelson thought that a special day would gather the energy of Americans. Twenty million people gathered that first Earth Day all across America. April 22, 1970.