Mark Gravitch News Today

Saturday, 4/20, marks the marijuana culture’s high holiday when college students -- and other weed fans -- light up at 4:20 to celebrate the decades-old tradition.

420 doesn’t begin with the police, but rather in the 1970s with a group of students in California.

Saturday, 4/20, marks the marijuana culture’s high holiday when college students -- and other weed fans -- light up at 4:20 to celebrate the decades-old tradition.

<p>Bored teens plus a coincidental after-school meeting time plus a statue of Louis Pasteur plus a gig as a Grateful Dead roadie turned out to equal a viral piece of pot culture that is known worldwide today.</p>

There are many theories about why 4/20 was chosen as the date to celebrate, and some are much more credible than others.

What do the Point Reyes lighthouse, French chemist Louis Pasteur and the Grateful Dead all have in common? Well, they’re all part of the origin story of how 420 methodically worked its way from a secret code to mainstream weed lingo.

Where does 420 come from? The Waldos, a group of friends who met at San Rafael High School, say they started the 420 movement back in 1971.

Unless youre extremely sheltered youre familiar with the term 420. You may have also heard about the "smokers holiday" and all the associated events that take place on April 20th. There are a bunch of different urban legends out there but if you want the real story history.com is sticking to the sticky icky icky on this one (Snoop Dogg reference). In other words... this is their story and theyre sticking to it. "In the fall of 1971, the Waldos learned of a Coast Guard member who had planted a ...