This Saturday , April 20 , is ` ` 420 : International Marijuana Day , '' with festivals worldwide . Nancy Reiman : In 1971 , high school friends invented 420 as code for smoking pot in secret . Nancy : It 's disgraceful so many people are serving time on marijuana charges . She says 52 % of people want new drugs ; 4/20 a good reason to join the effort .
This Saturday , April 20 , is `` 420 : International Marijuana Day , '' with festivals worldwide . Amanda Reiman : In 1971 , high school friends invented 420 as code for smoking pot in secret . Reiman : It 's disgraceful so many people are serving time on marijuana charges . She says 52 % of Americans want new policies ; 4/20 a good day to join legalization effort .