Assertion: smallpox's impact | /r/HasProperty | major
Facets:
Source sentences:
text: Smallpox has had a major impact on world history, not least because indigenous populations of regions where smallpox was non-native, such as the Americas and Australia, were rapidly decimated and weakened by smallpox (along with other introduced diseases) during periods of initial foreign contact, which helped pave the way for conquest and colonization.
text: So, smallpox had a major impact in Western Europe.