Yes, but because they talked about it using proxies of ethnicity, such as religion, geography, or nation*, we are to believe they were completely race-blind.
* The word nation came from the Old French [8th-14th century] word nacion – meaning "birth" (naissance), "place of origin" -, which in turn originates from the Latin word natio (nātĭō) literally meaning "birth". - https://en.wikipedia.org/wiki/Nation