It’s April 20th, an unofficial holiday in cannabis culture. The day is often just called “4/20” in reference to the number 420’s significance as a marijuana codeword. There are many theories as to how ...

On the surface, April 20 is not a great day for a celebration. It's the anniversary of the 1906 San Francisco Earthquake, the 1999 Columbine High School shooting and Adolf Hitler's birthday. But in ...