Assertion: white people's race | /r/HasAspect | single origin
Facets:
Source sentences:
text: Monogenism contends that all races have a single origin, while polygenism is the idea that each race has a separate origin.
text: (1707–1788) and the German anatomist Johann Blumenbach (1752–1840) were believers in monogenism, the concept that all races have a single origin.