Viewing a single comment thread. View all comments

Peter_deT t1_it5sxv4 wrote

Squared stone blocks are expensive to make. Cheaper and easier to take them from some abandoned building. Rome went from maybe 500,000 plus to 20,000 over two centuries, and stayed at 20,000 for several centuries more. Basically a mid-size town in the middle of a large field of ruins.

6