Where Did 420 Come From?

What's the marijuana '420' connection? Why is 420 important in cannabis culture? How did it get started and what does 420 really mean?
The term "420" in cannabis culture originated from a group of high school students in California in the 1970s, known as the "Waldos". They would meet at 4:20 p.m. each…

What's 420, Anyway?. Debunking the rumours to what, where…, by Danielle Poirier, Verda.com

WHAT'S THE STORY BEHIND 420? - Honey Oil Hemp

Where Did 420 Come From?

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Where does 420 come from

Preparing for a Successful 420 Cannabis Holiday

What Does 420 Friendly Mean?

420 Meaning: The True Story Of How April 20 Became 'Weed Day

420 History: How April 20 Became Known as 'Weed Day

What's 420 mean? How '70s teens popularized the weed slang - Los Angeles Times

From the archives: 4/20 ritual was a mellow affair in SF, but kind of a bummer in Santa Cruz – The Mercury News

Where Did 420 Come From?