<Ul> <Li> </Li> <Li> </Li> <Li> </Li> </Ul> <P> 420, 4: 20, or 4 / 20 (pronounced four - twenty) is a code - term in cannabis culture that refers to the consumption of cannabis, especially smoking cannabis around the time 4: 20 p.m. (or 16: 20 in 24 - hour notation) and smoking cannabis in celebration on the date April 20 (which is 4 / 20 in U.S. form). </P> <P> In 1971, five high school students--Steve Capper, Dave Reddix, Jeffrey Noel, Larry Schwartz, and Mark Gravich--in San Rafael, California, calling themselves the Waldos because "their chosen hang - out spot was a wall outside the school", used the term in connection with a 1971 plan to search for an abandoned cannabis crop that they had learned about, based on a treasure map made by the grower . The Waldos designated the Louis Pasteur statue on the grounds of San Rafael High School as their meeting place, and 4: 20 p.m. as their meeting time . The Waldos referred to this plan with the phrase "4: 20 Louis". After several failed attempts to find the crop, the group eventually shortened their phrase to simply "4: 20", which ultimately evolved into a codeword that the teens used to mean consuming cannabis . </P> <P> Mike Edison says that Steven Hager of High Times was responsible for taking the story about the Waldos to "mind - boggling, cult - like extremes" and "suppressing" all other stories about the origin of the term . Hager wrote "Stoner Smart or Stoner Stupid?", in which he attributed the early spread of the phrase to Grateful Dead followers--after Reddix became a roadie for the Dead's bassist, Phil Lesh--and called for 4: 20 p.m. to be the socially accepted hour of the day to consume cannabis . </P>

Where does the term 4 20 come from
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