Assertion: step pyramid | /r/RelatedTo | other mortuary complexes
Facets:
value: often
type: TEMPORAL
Source sentences:
text: Often associated with mounds and other mortuary complexes across the Eastern Woodlands (concentrated in the North American Southeast), step pyramids were constructed as ceremonial centers by the Mississippian cultures (900–1500 CE), and are regarded as a facet of the Southeastern Ceremonial Complex.