April 20 marks 420 Day with tens of thousands of Americans celebrating
the unofficial holiday honoring marijuana.
in 2009 that the holiday started in honor of a ritual performed by California teenagers in the 1970s.
The then-high school students are said to have smoked marijuana every day at 4:20 p.m.
and the number 420 became code for smoking the plant,
with 4/20 being acknowledged for calendar purposes.
A far less popular theory traces the 420 origin to the 1939 short story
In the Walls of Eryx
which describes "curious mirage-plants" that seem to resemble marijuana as getting the narrator high at 4:20,
As of April 20, 2022, recreational marijuana is legal in 18 states and Washington, D.C.,