Why 420? Origin Of The Pot-Smoker's Holiday

By | April 18, 2021

test article image
Jerry Garcia, guitarist and singer for the rock group the Grateful Dead, smokes a marijuana cigarette circa 1978. (Photo by © Roger Ressmeyer/CORBIS/VCG via Getty Images)

Even if you're not a stoner you know that "420" (April 20th) is the day when everyone partakes of marijuana, but whether they're waking and baking or just taking part in the time honored tradition of smoking a joint on their lunch break it's likely that they don't know how those numbers came to be a major part of getting stoned.

Beloved by pot smokers everywhere, 4/20 is more than just a non-sanctioned marijuana based holiday, it's a secret code into a society of smokers and tokers everywhere. Today, the term is ubiquitous. It's a part of pop culture that most of us connect to the '70s and pop culture, but tracing its origins is like looking for the stoner Holy Grail.

420 is somewhat of a mystery but its beginnings aren't as mysterious as they seem. Wading through the half-remembered history and legends surrounding this marijuana secret handshake brings up Bob Dylan, the Grateful Dead, and an urban legend about hidden marijuana plants.

California Penal Code And Bob Dylan's 'Rainy Day Women'

test article image
source: pinterest

One of the most repeated urban legends about 420 is that it comes from the California penal code for use or distribution of marijuana, but on the state books 420 is actually code from "obstructing entry on public land." There's no code 420 in Los Angeles. In San Francisco, ground zero for the hippie movement, 420 is a stand in for "juvenile disturbance."

So maybe it doesn't have anything to do with law enforcement, how about a pop culture megastar? Bob Dylan is one of the few artists who connects the squares and the people in the know, so it would make sense for him to have something to do with making 420 into popular jargon. Stoners look to "Rainy Day Women #12 & 35" as the big bang of 420. If you multiply 12 and 35 you get 420. While the math is solid it's doubtful that Dylan sat down to figure that out. So who came up with the magic number?