SAN RAFAEL, Calif. — Friday is April 20, or 4/20. That’s the numerical code for marijuana’s high holiday, a celebration and homage to pot’s enduring and universal slang for smoking.
Festivities are planned worldwide, culminating with a synchronized smoke at 4:20 p.m. local time.
How the marijuana-loving world came to mark the occasion is believed traceable to five Northern California men now in their 60s with bad backs and graying hair. They are the unofficial grandmasters by virtue of the code they created nearly 50 years ago as students at a suburban San Francisco high school in 1971.