Histories

All Egyptians sacrifice unblemished bulls and bull-calves; they may not sacrifice cows: these are sacred to Isis.

For the images of Isis are in woman's form, horned like a cow, exactly as the Greeks picture Io, and cows are held by far the most sacred of all beasts of the herd by all Egyptians alike.

For this reason, no Egyptian man or woman will kiss a Greek man, or use a knife, or a spit, or a cauldron belonging to a Greek, or taste the flesh of an unblemished bull that has been cut up with a Greek knife.

Cattle that die are dealt with in the following way. Cows are cast into the river, bulls are buried by each city in its suburbs, with one or both horns uncovered for a sign; then, when the carcass is decomposed, and the time appointed is at hand, a boat comes to each city from the island called Prosopitis,