Every year on April 20th, cannabis culture takes center stage. You’ll see “Happy 420” across social media, dispensaries running promotions, smoke shops packed with customers, and communities gathering to celebrate cannabis culture, advocacy, and progress. But most people—even people who actively participate—don’t actually know where 420 came from. Some think it’s a police code. Some believe it started with Bob Marley. Others assume it has something to do with the number of co