This Simple Math Concept Went Nowhere For A Century And Then — BOOM — Computers
George Boole 2 November 1815 – 8 December 1864
“And,” “Or,” “Not”
Boolean algebra is the combination of logic and algebra, initially developed by George Boole, for whom the subject is named, in the 1840s and ’50s, and later refined by other logicians through the rest of the nineteenth and early twentieth centuries.
Wikipedia: George Boole
Libraries (then known as Mechanics Institutes) played a big role in this school drop-outs development.