|1.||the history of the ancient world from the earliest known civilizations to the collapse of the Western Roman Empire in 476 |
|2.||informal a recent event or fact sufficiently familiar to have lost its pertinence|
ancient history definition
A past event, as in She's talking about her sea voyage, but that's ancient history, or And then there was his divorce, but you don't want to hear ancient history. This hyperbolic idiom transfers the field of ancient history to a much-repeated tale.