The early Classic period, 200 BCE – 300 CE, found the Mixtec civilization becoming more complex, with the adoption of a hierarchical settlement system. Artifacts and architecture display function and status differences reflecting this system of hierarchy. Urban centers were developed, the first of these being the core settlement of Yucuita. Yucuita was the largest and most complex of the early Classic urban centers, and existed for 500 years. It has been believed to be the possible capital of the Mixtec states during this period. The late Classic period was a continuation of the success and developments experienced during the early Classic period.