Today is the 107th day of 2024 and the 29th day of spring. TODAY’SHISTORY: In 1917, Vladimir Lenin returned to Russia in a sealed train after years in exile. In 1943, Swiss chemist Albert Hofmann discovered the hallucinogenic effects of LSD. In 1947, a fertilizer explosion during the loading of the freighter Grandcamp at a pier in Texas City, Texas, left more than 500 dead. In 1963, civil…