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Let's be blunt: 4/20 is a day to light up. Here is why marijuana enthusiasts mark the holiday.

4/20 origin: What does 4/20 mean? How did it start?

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What is 420? - 420 Meaning and the History Behind Weed Day on April 20

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4/20 origin: What does 4/20 mean? How did it start?

420: What does it mean and why is it celebrated?