Abraham Lincoln’s Cyphering Book

by Nerida Ellerston and M.A. Clements 10.29.18

by Nerida F. Ellerton and M.A. (Ken) Clements The oldest extant handwritten manuscript of Abraham Lincoln is his cyphering book, which comprised written solutions to arithmetic problems that he solved when he was at school. The most detailed description and analysis of the manuscript is to be found in chapter 6 of our book, Abraham […]

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