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The ordering was made to make it easier to find the places on the map, not because of any progression of civilization. I personally would prefer alphabetical sorting.
For the names of placemarks I prefer the ancient names (since this is an article about ancient sites) with alternative names and modern names given in parentheses.
Which cities in the list have not been located?
I will change ""location uncertain"" to ""inexact coordinates"" to reflect that onlymy coordinates are not exact as I prefer, and not the location of the site as such is uncertain. E.g. Kish is somewhere in the vicinity of the given coordinates but not in the exact spot. But I am continuously refining the coordinates.   "