>The Chinese and Roman road systems were built (independently) over the course of five centuries during the same period in history. Curiously, due to (unrelated) political reasons, both systems also started to disintegrate side by side from the third century AD onwards
All ancient societies were Malthusian, living at the limit of their food supplies. A period of global cooling started in the third century, knocking down the Roman and Chinese empires at the same time, for the same reason: https://www.spectator.co.uk/2017/12/famine-fever-and-the-fal...
All ancient societies were Malthusian, living at the limit of their food supplies. A period of global cooling started in the third century, knocking down the Roman and Chinese empires at the same time, for the same reason: https://www.spectator.co.uk/2017/12/famine-fever-and-the-fal...