420 is more than just a number—it’s a symbol of cannabis culture and advocacy. It represents a daily ritual (smoking at 4:20 PM) and an annual celebration on April 20, where enthusiasts gather to celebrate the plant and its many benefits. April 20, also known as “ 420 ,” is a day popular with many marijuana smokers. They see this date as an unofficial holiday and celebrate by getting high. The term “ 420 ” originated in the 1970s with a group of California high schoolers who would regularly meet after school at 4:20 p.m. to smoke weed. 420 ' s association with weed has deep roots in cannabis culture, originating from a simple code among friends and blossoming into a worldwide celebration. Its meaning has evolved over the years, but at its core, 420 remains a symbol of unity and freedom for cannabis enthusiasts. 420 , 4:20 or 4/20 (pronounced four-twenty) is cannabis culture slang for cannabis consumption, especially smoking around the time 4:20 p.m. (16:20). It also refers to cannabis -oriented celebrations that take place annually on April 20 (4/20 in U.S. date form). [3][4]