English Dictionary

ancient history

noun

A period of history generally seen as occurring before the Middle Ages, that is, before the fall of the Roman Empire. Includes Ancient Egypt, Ancient Greece and Ancient Rome.

The study of ancient history provides insights into the civilizations that existed thousands of years ago.

意味（1）

A period of history generally seen as occurring before the Middle Ages, that is, before the fall of the Roman Empire. Includes Ancient Egypt, Ancient Greece and Ancient Rome.

意味（2）

(idiomatic) That which happened a long time ago and not worth discussing any more.

Who cares if he said those things at the beginning of the year? That's ancient history now.