About: http://webisa.webdatacommons.org/28883535

Property	Value
http://www.w3.org/1999/02/22-rdf-syntax-ns#type	http://www.w3.org/ns/prov#Entity
http://www.w3.org/ns/prov#value	Read ???Early Dynastic Period.??? From there, click on ???Step Pyramid??? within the text to read about the kinds of pyramids that were being built in the early Dynastic period.
http://www.w3.org/ns/prov#wasQuotedFrom	saylor.org