April 20 or “420” has long been commemorated as an unofficial holiday for cannabis — but how did it get started? And what place does it hold in popular culture today?Monday on Midday Edition, we look at how April 20 became the cultural phenomenon it is today,…

S1: Welcome in San Diego. It’s Jade Hindman on today’s show , it’s 420 , the unofficial holiday for marijuana. We’ll talk about where the holiday came from and the latest research in medicinal cannab…