This king [Sesostris] divided the land among all Egyptians so as to give each one a quadrangle of equal size and to draw from each his revenues, by imposing a tax to be levied yearly. But everyone from whose part the river tore anything away, had to go to him to notify what had happened; he then sent overseers who had to measure out how much the land had become smaller, in order that the owner might pay on what was left, in proportion to the entire tax imposed. In this way, it appears to me, geometry originated, which passed thence to Hellas.
HerodotusIt [Egypt] has more wonders in it than any other country in the world and provides more works that defy description than any otherplace.
Herodotusthe Egyptians were the first to discover the solar year, and to portion out its course into twelve parts both the space of time and the seasons which they delimit. It was observation of the course of the stars which led them to adopt this divisionIt is also the Egyptians who first bought into use the names of the twelve gods, which the Greeks adopted from them
Herodotus