Assertion: empire's system | /r/HasAspect | its roots
Facets:
value: in certain ad hoc measures
type: OTHER
value: in the preclassic period
type: TEMPORAL
value: in common with other mesoamerican calendars
type: OTHER
Source sentences:
text: This system may have had its roots in certain ad hoc measures taken by Heraclius, but over the course of the 7th century it developed into an entirely new system of imperial governance.
text: The Maya calendrical system, in common with other Mesoamerican calendars, had its origins in the Preclassic period.
text: This system may have had its roots in certain ad hoc measures taken by Heraclius, but over the course of the 7th century it developed into an entirely new system of imperial governance.