Assertion: calendar | /r/ObjectUse | used by other cultures
Facets:
value: in history
type: TEMPORAL
Source sentences:
text: Months, decoupled from the phases of the Moon, are but a memory of forgotten lunar calendars, while weeks of seven days are entirely a social construct—while most calendars in use today adopt a cycle of seven day names or numbers, calendars with name cycles ranging from four to sixty days have been used by other cultures in history.