Replying to origin of 4-20??

what is the origin of 420, im under the impression that today is the day marley died, or am i wrong??


-That gun made me feel like a man, now all that i have left are my enormous genitals.' black cop from the simpsons

-me:so whats your name dude?
some drunk: JESUS!!
me: oh really!??! so can you walk on water?
some drunk: no, but i can walk on kool-aid.