The fact is that the wind is continually varying in force, and while the ordinary pressure plate is admirably adapted for measuring the force of a steady and uniform wind, it is entirely unsuitable for following the rapid fluctuations of the natural wind.
We may take it then (and the fact is not disputed even by those who, like Dorpfeld, believe in one thorough racial change, at least, during the Bronze Age) that the Aegean civilization was indigenous, firmly rooted and strong enough to persist essentially unchanged and dominant in its own geographical area throughout the Neolithic and Bronze Ages.
The fact is that until the 13th century the Franks lived consuetudinibus antiquis et jure non scripto.
The fact is that not only have the larger subdivisions a different arrangement and even number of the muscular layers, but even within the same genus, nay, in the same species, well-marked differences occur.
Syria in fact is beginning to take shape in our minds as perhaps the most ancient seat of civilization in the world, the common source from which Babylonia and Egypt derived those items of culture in which, in the early period, they resemble one another.