Assertion: caliphate's territory | /r/HasProperty | conquered comprising mesopotamia
Facets:
value: within the span of 24 years
type: TEMPORAL
Source sentences:
text: The Rashidun Caliphate expanded steadily; within the span of 24 years, a vast territory was conquered comprising Mesopotamia, the Levant, parts of Anatolia, and most of the Sasanian Empire.