The Walls of Shussel (first built at TL1)

[Icelander]

Originally Posted by johndallman

In which case, a core of sun-dried brick and an outer layer of baked brick would seem suitable. A TL1/2 society would need a very good fuel source to be able to build a city wall entirely from baked brick.

What would be the effects of a millenia or two on that kind of wall?

This is a port city, but I'm comfortable assuming that the sections of wall nearest the ocean have been repaired or even replaced more frequently than the rest. There have been many times when the port facilities needed enlarging and rebuilding and they were probably late TL2/early TL3 before the city entered a long economic slump due to misrule by a God-King.

Anything not adjacent to the ocean will likely enjoy a very mild climate for most of that time. Hot and sunny, for the most part, with, if anything, slightly less rain that in good for crops.