nysoclib.org

BgWKr TIL in 1790, George Washington checked out (and never returned) two books from the New York Society Library, one of which was finally replaced, in 2010, by representatives of his estate at Mount Vernon
X05DQ TIL: During the 18 months of the Great Plague (1665-1666), Isaac Newton conceived calculus, set foundations for his theory of light and color, theory of gravity, worked on laws of planetary motion and wrote many papers creating the foundations of early calculus.