Where did the phrase '420' originate?

Click the photo to the right to view the slideshow. The 11th annual Sweetwater 420 Festival, hosted by Sweetwater Brewing Co. and produced by Happy Ending Productions, was headlined by Snoop Dogg, 311 and Cage the Elephant. “It's always great to play 

A 420 license plate, a gift from Washington D.C. Mayor Muriel Bowser, adorns the 2015 Jeep Wrangler owned by Adam Eidinger, who led the drive to legalize marijuana in the city. The number is code for smoking marijuana. Photo taken April 17, 2015.

626008 1 10 amazing Willie Nelson quotes in honor of 420 (10 photos). 2. -willie-nelson-3. 3. -willie-nelson-1. 4. -willie-nelson-8. 5. -willie-nelson-7. 6. -willie-nelson-4. 7. -willie-nelson-6. 8. -willie-nelson-2. 9. -willie-nelson-5.

And in advance of 420 — a kind of Stoner's New Year celebrated on April 20 — plenty of people have been shopping for legal ganja goods, even where the drug is still vilified and against the law. On a recent day, Kerry Baker 

HBO and the creators of High Maintenance picked a conspicuous date to announce that the fantastic weed-centric web series has been picked up for a six-episode season on the premium cable network. Happy 420! The best