Yep, CapandCrush is right. That's basically what 420 is...
It's not really celebrated elsewhere in the world. In the UK we have 'greenfair' where you just goto this fair and get stoned or take otehr drugs.
If anyone wants immediate advice don\'t hestitate to contact to me on AIM (AOL instant messenger) - aim: vodkasmodka
Eccentric! Not egocentric!