This tag should be familiar to every psychonaut and elicit a knowing smile.
On April 19, 1943, Albert Hofmann got on his bike and changed the world.
He had previously taken 250 µg of LSD in a self-experiment, and during the physical exercise on the bike, his brain really went into overdrive.
And so it is not surprising that Bicycle Day is celebrated every year on April 19th.
For me from now on also a holiday