Yes, it's a major religious holiday for Christians, so Happy Easter to those celebrating it. But if you're walking around in some public areas of the U.S. today, you may notice a pungent, earthy aroma, and it's not incense. It's 420 day, the national "weed" smoking holiday, particularly in those jurisdictions that have legalized personal use of marijuana. In Denver, Colorado, thousands of weed aficionados turned out to celebrate the state's more lenient marijuana laws.
The history behind the term "420" is too lengthy to recount here, so here's the Wiki version.
