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TIL moon dust is toxic. Astronauts have reported watery eyes, throat irritation, and coughing after accumulating dust on suits. Moon dust particles are not weathered and are ultrafine, sharp, and reactive. [PDF]

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Z8O04 TIL there was a rumor in the 1960s that Japan made products in a town called Usa which were then exported to the US with the label "MADE IN USA" to make them appear as if they were made in the US.
x6O0 TIL after Beethoven heard Mauro Giuliani play the guitar, he commented that the instrument was “a miniature orchestra in itself”.
1aBN4 TIL In 1969, Samuel L Jackson was expelled from Morehouse for holding the board of trustees hostage, including MLK Sr., demanding reform in the school's curriculum and governance. His mother, afraid of him becoming a person of interest for the FBI, sent him to LA where he began acting.
KOdXB TIL of “The New Shadow” - a supposed sequel to LOTR that told of the reign of Aragorn’s descendant, men turning back to evil, and a plot to oust the king of Gondor. Tolkien quickly abandoned it after writing only 13 pages.
yQd8v TIL about "Bald–Hairy" a Russian political joke based on the observation that the nation's presidents consistently alternate hair types (ie Lenin was bald, Stalin had hair, Khruschev was bald, Brezhnev had hair.)