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Albert Hofmann (born January 11, 1906 in Baden in Aargau and died April 29, 2008 in La Bourg in the canton of Basel-Landschaft) was a Swiss chemist. He is particularly known for having discovered LSD with Professor Arthur Stoll for whom he was a laboratory assistant. Hofmann received the title of doctor honoris causa from the University of Geneva. Ergot and LSDIn the context of pharmaceutical research on ergot and with the aim of developing a circulatory stimulant, Hofmann synthesized various amide derivatives of lysergic acid in 1938, including the diethylamide LSD-25 (the 25th in this series). During tests, the substance caused an agitated state in animals but did not show any useful or interesting properties from a pharmaceutical point of view, and it was therefore not studied in more detail. However, in 1943, following "a hunch," Hofmann decided to produce LSD again. At the end of the synthesis, he felt changes in his environment and found himself in a state that he described as "dreamlike." Taken by kaleidoscopic and colorful visions, he decided to ride his bike home and lie down. The experiment lasted about two hours. According to him, he may have absorbed a small amount of the substance by rubbing his eyes.