April 1943

Wednesday 07:

First synthesis of LSD, lysergic acid diethylamide, by Albert Hoffman

Tuesday 13:

The Jefferson Memorial is dedicated in Washington, DC, on the 200th anniversary of Thomas Jefferson's birth.

Friday 16:

Dr. Albert Hofmann discovers the psychedelic effects of LSD.

Monday 19:

Bicycle Day – Swiss chemist Dr. Albert Hofmann deliberately takes LSD for the first time.

Thursday 22:

Albert Hofmann writes his first report about the hallucinogenic properties of LSD.

Sunday 25:

The Demyansk Shield for German troops in commemoration of Demyansk Pocket was instituted.

Friday 30:

World War II: Operation Mincemeat – The submarine HMS Seraph surfaces in the Mediterranean Sea off the coast of Spain to deposit a dead man planted with false invasion plans and dressed as a British military intelligence officer.