Has Phillip Morris Introduced 'Marlboro M' Marijuana Cigarettes?

In 2025, recreational marijuana is legal in 24 states, or nearly half of the U.S. However, that doesn't mean old wives' tales about pot have suddenly stopped spreading high and low across the internet.

Snopes' newsroom has encountered its fair share of claims about cannabis use over the years, from the origins of 4/20 —"marijuana culture's high holiday" — to its supposed health benefits (or side effects).

To mark this year's 4/20, we dug through our archives to bring you 20 fact checks about marijuana.