420, 4:20 or 4/20 is cannabis culture slang for marijuana and hashish consumption, especially smoking around the time 4:20 p.m. (16:20). It also refers to cannabis-oriented celebrations that take place annually on April 20.
Statue of Louis Pasteur at San Rafael High School, by Benny Bufano (1940), site of the earliest 4:20 gatherings in 1971
Vancouver, April 20, 2012
Cannabis culture describes a social atmosphere or series of associated social behaviors that depends heavily upon cannabis consumption, particularly as an entheogen, recreational drug and medicine.
Process of making bhang in a Sikh village in Punjab, India. On the Hindu and Sikh festival of colors called Holi, it is a customary addition to some intoxicating drinks.
Bhang eaters from India c. 1790. Bhang is an edible preparation of cannabis native to the Indian subcontinent. It has been used in food and drink as early as 1000 BCE by Hindus in ancient India.
A man smoking cannabis in Kolkata, India
A Rasta man holding cannabis