420 Day History
420 Day is a counterculture holiday that celebrates the use of marijuana. A group of high school students came up with the name "4:20 Louis" for their plan to find a marijuana field shown in a treasure map. They were supposed to meet at 4:20 p.m. Eventually, 4:20 spread as a term to mean marijuana use in general and a popular time to consume it, and April 20 (4/20 in U.S. format) became a day of celebration.
420 Day Facts
420 Day Top Events and Things to Do