Assertion: babylonian calendar | /r/HasProperty | introduced one or two full cycles
Facets:
value: in 1321
type: TEMPORAL
value: in 2781 bc
type: TEMPORAL
value: earlier
type: TEMPORAL
Source sentences:
text: This makes it certain that the Egyptian calendar is introduced one or two full cycles (1460 or 2920 years) earlier, either in 1321 or 2781 BC - with the earlier date considered more probable.