Assertion: dynasty's power | /r/CapableOf | wan over its 150 years of existence
Facets:
value: progressively
type: MANNER
Source sentences:
text: The power of the 13th dynasty waned progressively over its 150 years of existence and it finally came to an end with the conquest of Memphis by the Hyksos rulers of the 15th dynasty, c. 1650 BC.