WordReference Random House Unabridged Dictionary of American English © 2025
an′cient his′tory,
- Ancient Historythe study or a course of study of history before the end of the Western Roman Empire a.d. 476.
- information or an event of the recent past that is common knowledge or is no longer pertinent:Last week's news is ancient history.
- an event, as in a person's life, that occurred in the remote past and has no practical relationship with the present:She was my best friend in high school, but that's ancient history now.
- 1585–95
'ancient history' also found in these entries (note: many are not synonyms or translations):