COLUMBUS, Ohio (WCMH) -- This Sunday marks Ohio's first "4/20" with recreational cannabis sales, and Columbus organizations are itching to celebrate.

April 20, or 4/20, is marijuana's high holiday. According to the Associated Press, the term "420" is generally agreed to come from a group of San Rafael High Schoolers who called themselves "the Waldos." The Waldos would meet at a statue of chemist Louis Pasteur every day at 4:20 p.m. to smoke a joint and search for a patch of weed, and the term took off from there.

Columbus is home to several dispensaries and event hubs planning to celebrate the unofficial holiday:

Dispensary deals

Amplify

April 17 at 8:30 p.m. through April 20

Amplify dispensary is running several deals and giving away apparel to celebrate. An Amplify representative told NBC4 preorders begin Thursday , with sales lasting through Sunday. Amplify customers can enjoy deals on gummies, flower, pods and free Amplify hats with any purchase.

The Landing Dispensary

April 18 through April 20

The Landing Dispensary is offering 42.0% off Firelands Scientific and Heir items throughout the weekend.

Bloom

April 20

The first 50 in-store customers are eligible for three major deals, but visitors throughout the day can enjoy 40% off flower, 30% off edibles and resin products, and select four items for $20 each.

Herbal Wellness Center

April 18 through April 20

The first 100 customers each day will receive tote bags, medicinal trays and grinders in giveaways. Five brands are also 42.0% off all weekend.

Events

420 Gala at The Kee

The Kee, April 19 from 6 p.m. to 2 a.m. on April 20.

The event seeks to "celebrate the countdown to 4/20 in a way that's as unforgettable as New Year's Eve." Attendees can choose from $50 general admission tickets or $100 VIP tickets to enjoy a variety of art shows, vendors, games and and samples. The 420 gala will include rolling competitions, a curated munchies menu, vape and edible samples, and even pop-up tattoo stands.

420 Brunch, BLUNTZ and Mimosas Day party

The Social Club Lounge and Event Venue, April 20 from 3-7 p.m.

The event is billed as a laid-back gathering with brunch food, refreshing mimosas and hand-rolled blunts. A $20 ticket includes a mimosa or gram of weed to enjoy the games, music and more, and a $50 ticket includes brunch with the other benefits.

Half Baked: Four Days of 420

Half Baked Taproom and Warehouse, beginning at 4:20 p.m. from April 17 through April 20

Half Baked combines organic beer, a smoke shop and eclectic nightclub aesthetic on a normal week, but is taking things up a notch with four days of events for 420. Online RSVPs are free, but do not guarantee entry.

• April 17, Taproom on High Street: Half Baked will debut new merchandise before "stoner karaoke" at 9 p.m. Winners will receive ready-to-plant cannabis.
• April 18, Warehouse on East Hudson and Taproom: Half Baked's fourth-annual "Anti Award Award Show" will kick off at 9 p.m. at the warehouse, followed by a taproom afterparty with complimentary Astral tequila.
• April 19, Warehouse and Taproom: A ticketed Invanity Visual Arts Show and Rave will start at 8 p.m. at the warehouse, followed by a midnight THC champagne toast at the taproom.
• April 20, Taproom: A $420 skateboarding cash grab will start at 4:20 p.m., kicking off a night of complimentary Hennessy. At 8 p.m., attendees can enjoy a joint rolling contest, followed by a "Secret Show" at 9 p.m.

Anyone celebrating by using recreational cannabis should be aware of current Ohio marijuana law and partake responsibly.