How did the Roman empire last for almost 1500 years?
https://freethoughtblogs.com/pharyngula/2017/12/21/hey-why-is-the-solstice-on-21-december/
@pzmyers that's a fantastic comment by cartonmancer, who clearly explains the difference between the Greeks and the Romans of antiquity, and their way of living by distinguishing how they kept their time.