The art of memory is ancient. Why? Because it was needed. Indeed, the ancient world strummed along rather well without the use of paper. Imagine a world without paper, if you can. There would be no textbooks, no notes, no crib sheets, no reminders. None of those modern artifacts of our daily lives would be there to assist us. Today, we rely 100% on paper, electronic or from wood pulp. Even into relatively modern times, students relied on their memory to recall long citations from the literature or even math. Abraham Lincoln, the 16th President of the US, who was raised with hardly a book in his house, developed his memory to prodigious levels. He was a surveyor in his early days - to make a living. This came long before he studied law. For his survey work he needed basic math skills. These included knowledge of the right triangle, oblique angles and triangles, azimuth, angles, bearing, bearing intersections, distance intersections, coordinate geometry, law of s
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