oral history
noun /ˌɔːrəl ˈhɪstri/
/ˌɔːrəl ˈhɪstri/
[uncountable]- the collection and study of historical information using sound recordings of interviews with people who remember past events
- Oral history is the oldest form of history there is.
- Oral history enables us to take account of those many aspects of history that are not recorded in documents.