Assertion: serpent mound | /r/HasProperty | brought to general attention
Facets:
value: in the 1840’s
type: TEMPORAL
value: by the famous pair
type: OTHER
Source sentences:
text: Serpent Mound was known to Native peoples and early settlers of Adams County for many years, but was brought to general attention in the 1840’s by the famous pair who made a broad survey of Ohio’s earthworks: Squier and Davis.