› added 3 months ago

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TIL about a 16th century book that opens six different ways, revealing six different books in one

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KYWPJ TIL Egyptian blue, also known as calcium copper silicate (CaCuSi4O10 or CaOCuO(SiO2)4 (calcium copper tetrasilicate)) or cuprorivaite, is considered to be the first synthetic pigment.
E1RKp TIL that the Mercantile Library of Cincinnati has a perpetually renewable 10,000-year lease from the Cincinnati College, after members of the Library Association helped rebuild the college when its structure burned in 1845
Gnx1 TIL that Salvador Dali used to avoid paying at restaurants by drawing on checks. He knew that the owner would never want to cash such a valuable piece of art.
Akxl TIL while looking for a lost hammer with a metal detector in 1993, a man in England found the largest hoard of late Roman silver and gold ever discovered in Britain. It was worth £1.75m (£2.66m today).
kOLk7 TIL: just after the end of WW2 Sweden and Greece both had thousands of sightings of UFO's called Ghost Rockets. The US government took them seriously enough that Pres. Dwight D. Eisenhower sent war hero Gen. Jimmy Doolittle to Sweden to investigate in 1946.