The Beginnings of Greek Mathematics
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With the possible exception of astronomy, mathematics is the oldest and most continuously
pursued of the exact sciences. Its origins lie shrouded in the mists of antiquity. We are often
told that in mathematics all roads lead back to Greece. But the Greeks themselves had other ideas about where mathematics began. A favored one is represented by Aristotle, who in his Metaphysics wrote: “The mathematical sciences originated in the neighborhood of Egypt, because there the priestly class
was allowed leisure.” This is partly true, for the most spectacular advances in mathematics have occurred contemporaneously with the existence of a leisure class devoted to
the pursuit of knowledge. A more prosaic view is that mathematics arose from practical
needs. The Egyptians required ordinary arithmetic in the daily transactions of commerce
and state government to x taxes, to calculate the interest on loans, to compute wages,
and to construct a workable calendar. Simple geometric rules were applied to determine
boundaries of elds and the contents of granaries. As Herodotus called Egypt the gift of
the Nile, we could call geometry a second gift. For with the annual ooding of the Nile
Valley, it became necessary for purposes of taxation to determine how much land had
been gained or lost. This was the view of the Greek commentator Proclus (A.D. 410–485),
whose Commentary on the First Book of Euclid’s Elements is our invaluable source of
information on pre-Euclidean geometry:
According to most accounts geometry was rst discovered among the Egyptians and originated in the measuring of their lands. This was necessary for them because the Nile over ows
and obliterates the boundaries between their properties.