420 is the biggest cannabis culture holiday of the year, celebrated by cannabis consumers around the country for decades. Whether it’s your first year celebrating “stoner Christmas” or your long-held favorite day of the year, here’s what you need to know about Arizona state law to celebrate 420 responsibly. Be sure to check out our 420 deals!  What Is 420 & Why It Matters 420 is the original cannabis celebration. It all started with a group of high schoolers in California in the …