gromatici (11. 228)

A committed flaneur and a bit obsessed with getting my steps in myself, we were pleased to learn of the bematist-set—those specialist βηματισταί employed in Ancient Egypt and Greece—whom for one assignment at least proved to have accurately measured the distances crossed by the army of Alexander the Great—with such precision, it was said that they gauged their paces with an early odometer, suggested by Pliny the Elder and Hero of Alexandria, though no direct evidence exists. Later on the philosopher and polymath, with the assistance of a bematist, Eratosthenes pretty closely calculated the circumference of the Earth around 240 BCE. The first application—the above title—of this skill however augmented, was in land surveyors and tax assessors, possibly also with instrumentation aid and a professional class endorsed by attendant religious officers.