How these dates were made
Why this bar's edges are floors, not a founding and a fall.
The atlas draws the world at 9 moments in time, not continuously. This bar runs from the first snapshot in which Saharan Pastoral Nomads appears to the last, so both edges are floors — the earliest and latest years it is attested, not a founding and a dissolution.
Elsewhere in Africa at the time
Records whose own span overlaps this one, found by the same test the canvas draws with. The bar under each card is where it sits inside this one.
Landmark · Africa
Leptis Magna
1000 BCE – still standingPolity · Africa
Khoiasan
Attested 1500 BCE – 1500 CELandmark · Africa
Volubilis
300 BCE – 1200 CEPolity · Africa
Khoisan
Attested 3000 BCE – 2000 BCELandmark · Africa
Osun-Osogbo Sacred Grove
200 BCE – still standingPolity · Africa
Bantu
Attested 3000 BCE – 2000 BCELandmark · Africa
Tassili n'Ajjer
8000 BCE – 1500 BCEPolity · Africa
Berbers
Attested 1500 BCE – 900 CEDated moments inside this span
Events the timeline places between 2000 BCE and 200 BCE.
And in the rest of the world
Records running through the same years, on the other side of the map.
Image credits6 pictures from Wikimedia Commons
- Leptis Magnajoepyrek from Richmond, Va, USA · CC BY-SA 2.0
- VolubilisSubhros · CC BY-SA 3.0
- KhoisanIan Beatty from Amherst, MA, USA · CC BY-SA 2.0
- Osun-OsogboABORISADEADETONA · CC BY-SA 4.0
- Tassili n'AjjerHeribertus2 · CC BY-SA 4.0
- Berber flagMysid · Public domain