2008 to 2012
I have been to Istanbul and to Segovia, and was equally impressed with the Roman engineering. And great that both are still intact.But what a shame all that learning was forgotten during the Dark and Middle Ages. Humanity had to relearn it from basics, many centuries later.
Yes, and even more extraordinary that much of their engineering was just lying there unused for so long. I read that the Carthaginians used to dig trenches in their hills and mountains, which would fill with water, which in turn would produce springs in their agricultural lands. When they were invaded no one dug out the trenches and the springs dried up turning good growing land into scrub.
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