ancient times

I wish I could see the ancient world.

Person of the future: "The calendar of this Unix machine that the ancients built only goes up to January 19, 2038. As such, I am convinced that this marks the day of the Earth's destruction."

The title "Zi" was an honorific title for learned scholars in ancient China, such as Confucius, Laozi, Mozi and Han Feizi.

Rome is famous for its ancient architecture.

The custom of eating dumplings on New Year's Eve is related to an ancient Chinese method of measuring time; in ancient China, each day was divided into twelve sections: the beginning of each day was called 'first time', which corresponds to the period from 11pm to 1am.