Sumerian calendar
E767166
The Sumerian calendar was one of the earliest known lunisolar calendars, developed in ancient Mesopotamia to organize religious festivals, agriculture, and civic life around the cycles of the moon and sun.
Statements (50)
| Predicate | Object |
|---|---|
| instanceOf |
ancient calendar system
ⓘ
lunisolar calendar ⓘ |
| associatedWithCity | Ur (moon-god cult center) NERFINISHED ⓘ |
| associatedWithDeity | Nanna NERFINISHED ⓘ |
| basedOn |
lunar cycles
ⓘ
solar year ⓘ |
| calendarYearType | luni-solar year ⓘ |
| dayCountPerMonthBasis | synodic lunar cycle ⓘ |
| developedIn | 3rd millennium BCE ⓘ |
| earliestEvidenceFrom | Early Dynastic period NERFINISHED ⓘ |
| geographicRegion | southern Mesopotamia ⓘ |
| hasCulturalContext |
Sumerian city-state administration
ⓘ
Sumerian religion NERFINISHED ⓘ |
| hasDayCountPerMonth | 29 or 30 ⓘ |
| hasIntercalation | intercalary month ⓘ |
| hasMonthCount | 12 ⓘ |
| hasMonthType | lunar month ⓘ |
| hasTimeUnit |
day
ⓘ
month ⓘ year ⓘ |
| influenced |
Akkadian calendar
ⓘ
Babylonian calendar ⓘ later Mesopotamian calendars ⓘ |
| modernDisciplineStudies |
Assyriology
NERFINISHED
ⓘ
history of astronomy ⓘ |
| notationSystem | cuneiform script ⓘ |
| observedWith | naked-eye astronomy ⓘ |
| preceded | standard Babylonian calendar ⓘ |
| purposeOfIntercalation | to align lunar months with solar year ⓘ |
| regulatedBy |
priesthood
ⓘ
temple authorities ⓘ |
| relatedTo |
Sumerian agricultural cycle
ⓘ
Sumerian legal and economic documents ⓘ Sumerian religious festivals ⓘ |
| standardizedIn | Ur III period NERFINISHED ⓘ |
| usedBy | Sumerians NERFINISHED ⓘ |
| usedFor |
agricultural planning
ⓘ
civic administration ⓘ dating cuneiform tablets ⓘ organizing religious festivals ⓘ regulating agriculture ⓘ tax collection scheduling ⓘ timing of royal ceremonies ⓘ timing of temple rituals ⓘ |
| usedIn | ancient Mesopotamia NERFINISHED ⓘ |
| usedInCity |
Lagash
NERFINISHED
ⓘ
Nippur NERFINISHED ⓘ Ur NERFINISHED ⓘ Uruk NERFINISHED ⓘ |
| usedWithNumberSystem | sexagesimal system NERFINISHED ⓘ |
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.