Assertion: archipelago's population | /r/HasProperty | reduced by infectious diseases
Facets:
value: greatly
type: DEGREE
value: following contact with europeans
type: TEMPORAL
Source sentences:
text: Following contact with Europeans, the native Selk'nam and Yaghan populations were greatly reduced by unequal conflict and persecution by settlers, by infectious diseases to which the indigenous people had no immunity, and by mass transfer to the Salesian mission of Dawson Island.