35th anniversary of Earth Day, 22 Apr 2005

First celebrated in March 21, 1970; what started as a celebration of the start of the march/ Vernal Equinox, which basically means the start of Spring has turned into a celebration of the natural wonders of mother earth and more recently into a day to reflect on the amount of damage we have inflicted into our planet.

Yes... and thats how earth day came about.