Earth Day was originally conceived by environmental activist John McConnell back in 1969. But it was U.S. Senator Gaylord Nelson who founded it as an environmental teach-in held on April 22, 1970. Many people consider this event the birth of the “Going Green” movement. Observed every year on April 22, this day of environmental awareness has grown by leaps and bounds over the past 48 years. From the historic 2016 singing of the Paris Climate Agreement to the 2017 March For Science, it has become a day of great significance for eco activists. Coordinated by the Earth Day Network, there are now annual events held in 193 countries around the world to promote the idea that we, as humans, should protect the environment.