c. 2900 BCE–c. 2350 BCE
Sumerian city-state urban system
Población, migración y ciudades · Red urbana · Jerarquía de asentamientos · Mesopotamia
Regional studies of southern Mesopotamia make it possible to reconstruct a network of city-states—Ur, Uruk, Lagash, Nippur, and others—of very unequal size. The relevant fact here is the regional settlement hierarchy, not a political narrative of each city.
Precision, calendar, and review
- Start
- year · approximate
- End
- year · approximate
- Calendar and convention
- Historical-era years; the source calendar is not identified. No conversion of days is assumed.
- Year zero
- The scale goes from 1 BCE to 1 CE without year zero. Changing era names changes labels only.
- Documentary review
- Date not recorded
Reading the date: duration of a process.
Sources
- oi.uchicago.edu (opens in a new tab)
Source provenance and scope
- Publication date
- Pending verification: the source could not be accessed
- Bibliographic date checked
- 2026-09-23
The correspondence between this reference and individual claims has not yet been itemized.
This record is an editorial synthesis. Consult the sources to check claims and their limits. Chronological relationships alone do not establish causation.