Bicycle Day: Commemorating the First LSD Trip

Bicycle Day is a global holiday celebrated on April 19th to commemorate the first intentional LSD trip by Dr. Albert Hofmann in 1943, during which he experienced the psychedelic effects of the drug while riding a bicycle. The holiday is often marked by ingesting psychedelics, riding a bike, organizing parades, and participating in psychedelic-themed festivities. It was named and declared a holiday in 1985 by Thomas Roberts, a psychology professor, and has been increasingly observed in psychedelic communities as a day to celebrate the discovery of LSD.

• Bicycle Day is a global holiday celebrated on April 19th to commemorate the first intentional LSD trip by Dr. Albert Hofmann in 1943
• The holiday is marked by ingesting psychedelics, riding a bike, organizing parades, and participating in psychedelic-themed festivities
• Named and declared a holiday in 1985 by Thomas Roberts, a psychology professor