The Babel of multicenter exposure assessment.

Now the whole earth had one language and the same words. And as they migrated from the east, they came upon a plain in the land of Shinar and settled there. And they said to one another, ‘Come, let us make bricks, and burn them thoroughly’. And they had brick for stone, and bitumen for mortar. Then they said, ‘Come, let us build ourselves a city, and a tower with its top in the heavens, and let us make a name for ourselves; otherwise we shall be scattered abroad upon the face of the whole earth’.