The History Of 4/20 Day And How The Name Caught On

By : |


Hyde Park

As I’m sure most of you know, today is ‘4/20 day’, and police officers have already arrested 53 pro-cannabis protesters in Hyde Park, openly smoking marijuana.

Over the years there has been plenty of myths regarding the origin of 420.. Bob Marley’s Birthday, 420 is the number of chemical compounds found in weed, and my personal favourite – 420 was the police code for marijuana possession.

simpsons mac wallpaper chief clancy wiggum other copy

The truth is, the phrase started with a bunch of high school students in 1971. They attended San Rafael High School in California, and got into the habit of meeting outside of school at the statue of Louis Pasteur to smoke weed at precisely 4:20 each day. When they met each other in the hallways, their code was “420 Louis”, which meant to meet at the “Louis Pasteur statue at 4:20 to smoke.” Eventually the code was shortened just to “420”.


Somehow, the phrase caught on, and it spread like wildfire. And what began as a code for students to get high after school is now a global event, for pro-marijuana campaigners all over the world. It has become such a huge event that the state of Colorado, where Marijuana is now legal, is expecting an influx of tourists for 420 day.

Since Colorado legalised Marijuana just over a year ago, it has hauled in over $70 million dollars in tax from marijuana sales to date, as well as saving the state justice system considerable amounts of money.

I’m sure local business will be looking forward to today.