Assertion: pueblo's area | /r/HasProperty | explored by european
Facets:
value: in the late 1500s
type: TEMPORAL
Source sentences:
text: First explored by Europeans in the late 1500s (the Spanish referred to the region as “Colorado” for its red-colored earth), the area was ceded to the United States in 1848 with the Treaty of Guadalupe Hidalgo that ended the Mexican-American War (1846-48).