Aerial Archaeology

The Atlantic:

The method that Menze and Ur (yep, Ur!) have developed focuses on the analysis of anthrosol, a type of soil that forms as a result of long-term human activity—and that, being generally richer in organic matter than its counterparts, often has a different color than the soils that surround it.

From the ground, those distinctions don’t look like much. From the sky, however, they reveal patterns that can, in turn, suggest the locations of—and, even more intriguingly, the pattern of networks among — the world’s earliest civilizations.

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