{"id":4843,"canonical_url":"https://www.kudos365.com/today-in-history/events/1943ce-apr-16--4843","name":"1943 CE, April 16","year":1943,"era":"CE","month":4,"day":16,"url":"https://www.kudos365.com/today-in-history/events/1943ce-apr-16--4843","iso-date":"1943-04-16","precision":"year-month-day","description":"\u003cp\u003eAlbert Hofmann, a Swiss chemist at Sandoz Laboratories in Basel, accidentally discovers the hallucinatory effects\u0026nbsp; of the LSD compound on April 16, 1943, as he accidentally absorbed a small amount while re-synthesizing LSD-25 for further testing. \u003cbr\u003e\u003c/p\u003e","additional_details":"\u003cp\u003eThe compound absorption, induced dizziness and, later, a \" kind of dream world appeared' with vivid, colored hallucinations. He had originally synthesized the compound 5 years earlier on November 16, 1938. Today, LSD is illegal in almost every country in the world, and it is tightly controlled where its use is allowed in medical research.\u003c/p\u003e","photo":"https://k365fs.imgix.net/d4J4yUrdSGC2WpWQA5q1_Albert_Hofmann_Oct_1993%20CC25R.jpg?auto=format,compress\u0026fit=clip\u0026max-w=1600","photo_width":480,"photo_height":307,"created_at":"2026-04-15T18:18:16-07:00","updated_at":"2026-04-16T13:44:19-07:00","breadcrumbs":{"@context":"https://schema.org","@type":"BreadcrumbList","itemListElement":[{"@type":"ListItem","position":1,"name":"April History","item":"https://www.kudos365.com/today-in-history/april"},{"@type":"ListItem","position":2,"name":"April 16","item":"https://www.kudos365.com/today-in-history/april-16"}]},"schema":{"@context":"https://schema.org","@type":"Thing","@id":"https://www.kudos365.com/today-in-history/events/1943ce-apr-16--4843#eventK365","name":"1943 CE, April 16","headline":"Albert Hofmann, a Swiss chemist at Sandoz Laboratories in Basel, accidentally discovers the hallucinatory... - 1943 CE","description":"Albert Hofmann, a Swiss chemist at Sandoz Laboratories in Basel, accidentally discovers the hallucinatory effects  of the LSD compound on April 16, 1943, as...","url":"https://www.kudos365.com/today-in-history/events/1943ce-apr-16--4843","additionalType":"HistoricalEvent","inLanguage":"en","datePublished":"2026-04-15T18:18:16-07:00","dateModified":"2026-04-16T13:44:19-07:00","publisher":{"@id":"https://www.kudos365.com/#organizationK365"},"image":{"@type":"ImageObject","url":"https://k365fs.imgix.net/d4J4yUrdSGC2WpWQA5q1_Albert_Hofmann_Oct_1993%20CC25R.jpg?auto=format,compress\u0026fit=clip\u0026max-w=1600","width":480,"height":307},"temporalCoverage":"1943-04-16","isPartOf":[{"@id":"https://www.kudos365.com/#websiteK365"},{"@type":"CollectionPage","@id":"https://www.kudos365.com/today-in-history/april","name":"What Happened in April History"},{"@type":"CollectionPage","@id":"https://www.kudos365.com/today-in-history/april-16#pageK365","name":"What Happened on April 16"}]}}