The Global Marijuana March goes by a number of different names including World Cannabis Day, Worldwide Marijuana March, Cannabis Liberation Day, Global Space Odyssey, Ganja Day, J Day, and Million Blunts March. The event got its start as the 5th Avenue Pot Parade in New York somewhere between 1970 and 1973, as there is some question as to when the first official march really was. Today more than 250 cities around the world participate in the event on the first Saturday in May in an effort to push for the legalization of cannabis.
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Youngsters smoke marijuana during a march for the legalization of cannabis in Medellin, Colombia on May 5, as part of the 2012 Global Marijuana March which is being held in hundreds of cities worldwide.