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420 is the famous number that represents cannabis enthusiasts worldwide.  As we approach the date that people everywhere will honor, one might ask, where did 420 come from? ...
By Carolyn Scott
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420 is the famous number that represents cannabis enthusiasts worldwide. As we approach the date when tokers everywhere will light up in honor, one might ask, where did 420 come from?


In short, it is now widely believed that the term originated in the early 70s from a group of teen athletes at San Rafael High School in California, who were referred to as The Waldos. The Huffington Post explains, ‘The Waldos do have proof, however, that they used the term in the early ’70s in the form of an old 420 flag and numerous letters with 420 references and early ’70s postmarks.’


The story given by one of the Waldos is that this group of friends began a sort of quest, an adventure, to find a hidden marijuana grow that had been abandoned by a member of the Coast Guard who could no longer tend to it. Every day they would meet after their sports practice, at… you guessed it, at 4:20, to smoke some weed and then look for the infamous plants. They say that they never found the grow site, but their personal quest became an international reference that lives on.


The world of weed has come a long way since 1971, but clearly, there is still a lot of work to be done: from legalization of cannabis in many states, to fighting for the freedom of people jailed on cannabis charges who should be set free. But as you take a break from your work (of whatever kind) to enjoy this year’s 420, we’d like to let you know about a few 420 events that you could attend if you’re close by.


Here’s what our boots-on-the-ground teams have curated.  


HEY MASSACHUSETTS! Meet up with Sensi’s Jake Boynton at this epic 420 event at Harvard Square.        Learn More


The Sensi Oklahoma Team curated such a large list of events, that we’ve given them their own page.  Please take a look here to learn more!

It’s here!  The home of the original Sensi Night is having an anniversary.  Don’t Miss it!  Learn more and get your tickets here.


Meet the biggest cannabis industry players and make deals that will push the industry forward. There’s no better place to connect with the people driving the global cannabis industry forward. Enjoy all the food, libations & come back with millions of dollars in deals. 


420 Grab Bag – find a location to snag your 420 samples bag!  Our Sensi Michigan team has pulled together brands from across the state to participate in this generous annual event. Check our list of dispensary pick-up sites and grab your bag! Learn More

Nature’s Remedy 420 extravaganza Nature’s remedy is pulling out all the stops to make this our biggest party yet! Get ready to immerse yourself in a day filled with excitement and entertainment.

Explore a variety of vendor booths showcasing the latest and greatest products.
Test your skills on our Bocce Ball Court. Don’t miss out on exclusive NRC Merchandise at our Merch Table.

Groove to the beats with DJ CoCo spinning the hottest tracks. Kick up your heels and join Kamm for some lively Line Dancing. Step into our unique Bowling Truck for a game like no other. Learn More


The 420 State Fair promises to be a one-of-a-kind celebration blending the vibrant culture of Las Vegas with the spirited community of cannabis enthusiasts.  Learn More

Embark on a journey of eco-consciousness and indulgence as we unite to honor our planet and elevate our spirits. Indulge in Kava tastings, immune support from Elderberry Source, and delicious treats, plus thrilling Raffle and a Prize Wheel!  Learn More


How to Win in Cannabis!  

Panel discussion with industry professionals discussing topics like regulations, how to avoid overpaying for ‘experts’, mitigating fees tacked on just for working in the industry and much more.     Learn More

We can’t wait to celebrate our first 4/20 with you! With roots dating back to ancient Asia, cannabis has traveled the world and played an integral part in our collective history.

Learn More

Featuring DJs Tony Touch & Skribble + More • A 12 Hour Celebration of Music, Art, Food & Culture.  Learn More


Come join us at Club Exclusive (formerly Groove Lounge) for a night filled with the best of reggae and afrobeats music as we pay tribute to the legendary Bob Marley. Get ready to dance the night away to the infectious rhythms and beats that will transport you to the heart of the Caribbean and Africa.  Learn More

Meet Uptown for a hike on the beautiful Hudson River Greenway down to Riverbank State Park. You will be introduced to some of NYs finest Adult Use brands in different forms for your pleasure. This is an opportunity to incorporate the plant into your wellness practices and meet like-minded humans who like to take advantage of the trails in NYC.

Learn More


The Sensi Oklahoma Team curated such a large list of events, that we’ve given them their own page.  Please take a look here to learn more!


Nunzio by Chef Michael DeLone and Mercantile 1888 Zero Proof Bar collaborate and celebrate 4/20 with a Munchie Madness, CBD & THC cannabis-inspired dinner and tutorial, Saturday, April 20 at 6 p.m. for $120 per person.  Learn More