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The first arithmetic book published in England was a 1522 Latin text by Cuthbert Tunstall.

The "rood", a linear measure dating from many centuries ago, is calculated anew in today's classrooms.
Four episodes in the history of geometry are discussed, where dynamic geometry helps in understanding the ideas.
Problems taken from Chinese sources
Paul Halmos Photograph Collection, page 2: Arveson, Aschbacher, Askey, Lininger, Atiyah, Doob
A certain merchant increases the value of his estate by 1/3...
A horse halving its speed every day runs 700 miles in 7 days.
This is the title page to Rene Descartes' Treatise on Method, with its three famous essays on Dioptrics, Meteorology, and Geometry. The third essay contains Descartes' treatment of analytic geometry as well as his theory of equations and his rule for finding the normal to a given curve.
A set of n disjoint, congruent circles packs the surface of a sphere S so that each region of the surface exterior to the circles is bounded by arcs of three of the circles.
A general formed his men into a square, that is, an equal number in rank and file, and he found that he had an excess of 59 men.