Bicycle Day, April 19, is not about bicycles. April 19, 2021April 19, 2021 JPPartland Figures. Bicycle Day is April 19 because on this day in 1943, Dr. Albert Hoffman, a Swiss chemist, working on behalf of Sandoz Pharmaceuticals, first known for Saccharine, dosed himself with 250 micrograms of Lysergic […]Share this:Click to share on Twitter (Opens in new window)Click to share on Facebook (Opens in new window)Click to share on LinkedIn (Opens in new window)Click to share on Tumblr (Opens in new window)Click to share on Pocket (Opens in new window)Like this:Like Loading...Share It!