Thus began the Ptolemaic dynasty, during which began the city's gradual decline. It was Ptolemy I who first introduced the cult of Serapis in Egypt, establishing his cult in Saqqara. From this period date many developments of the Saqqara Serapeum, including the building of the Chamber of Poets, as well as the "dromos" adorning the temple, and many elements of Greek-inspired architecture. The cult's reputation extended beyond the borders of the country, but was later eclipsed by the great Alexandrian Serapeum, built in Ptolemy's honour by his successors.