Note 101 — BOOK III THE DAWN OF HISTORY
Reading edition
We shall use “Mesopotamia” here loosely for the Euphrates-Tigris country generally. Strictly, of course, as its name indicates, Mesopotamia (mid rivers) means only the country between those two great rivers. That country in the fork was probably very marshy and unhealthy in early times (Sayce), until it was drained by man, and the early cities grew up west of the Euphrates and east of the Tigris. Probably these rivers then flowed separately into the Persian Gulf.