420 Origins: We need to go back to the 1970s, in California, where these kids known as ‘The Waldos’ got together to smoke marijuana after school at 4:20 pm. That’s why they used the code 420 to remind each other about their daily meetings.
Norville “Shaggy” Rogers made his first appearance in the Scooby-Doo! Where Are You? episode “What a Night for a Knight.” Created in response to complaints about violence in kids programming, the series introduced viewers to four crime fighting kids: preppy Fred, pretty Daphne, nerdy Velma, and silly Shaggy (with his similarly humored dog, Scooby-Doo). It’s clear from the moment that he steps on screen that Shaggy was meant as a counterculture pastiche. Shaggy was based on a character from The Many Loves of Dobie Gillis, Maynard G. Krebs, who is cited as TV’s first beatnik. Shaggy is relaxed to the point of inaction with a raggedy bowl cut and unending hunger for snacks. It made him the perfect comedy relief for the supernatural spookiness of Scooby-Doo and his somewhat straight-laced mystery solving teammates.