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This is a list of political entities in the 21st century BC.
| Entities | Years | Ref |
|---|---|---|
| Akkadian Empire | 2334–2193 BC | [1] |
| Armi | 2290–2240 BC | [2] |
| Aramea | 2300–700 BC | [3] |
| Arzawa | 2300–1200 BC | |
| Assyria | 2025–911 BC | |
| Dilmun | 2600–675 BC | |
| Ebla | 3500–1600 BC | |
| Egypt | 3050–1550, 1077–322 BC | |
| Elam | 2800–550 BC | |
| Gojoseon | 2333–108 BC | |
| Gutium | 2108–2089 BC | |
| Hatti | 2700–1900 BC | |
| Illyria | 2000–168 BC | |
| Indus | 3100–1300 BC | |
| Lullubi | 2400–650 BC | |
| Luvia | 2300–1400 BC | |
| Magan | 2200–550 BC | |
| Mari | 2900–1759 BC | |
| Minoa | 2700–1420 BC | |
| Namar | 2350–750 BC | |
| Pelasgia | 3000–1183 BC | |
| Purushanda | 2000–1650 BC | |
| Punt | 2400–1069 BC | |
| Sumeria | 2900–1674 BC | |
| Ugarit | 2500–1090 BC | |
| Văn Lang | 2879–258 BC | |
| Xia | 2070–1600 BC (dates uncertain) |