How these dates were made
Why this bar's edges are floors, not a founding and a fall.
The atlas draws the world at 2 moments in time, not continuously. This bar runs from the first snapshot in which Wattasid Caliphate 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
Royal Hill of Ambohimanga
1500 CE – still standingPolity · Africa
Portuguese East Africa
1498 CE – 1975 CEConflict · Africa
Kanem–Bornu Wars
700 CE – 1846 CETrade route · Africa
East African Coastal Trade
900 CE – 1505 CELandmark · Africa
Tomb of the Askia
1495 CE – still standingPolity · Africa
Mozambique (Portugal)
1498 CE – 1975 CEConflict · Africa
Great Zimbabwe & Mutapa Wars
1100 CE – 1629 CELandmark · Africa
Taï National Park
3000 BCE – still standingDated moments inside this span
Events the timeline places between 1492 CE and 1500 CE.
And in the rest of the world
Records running through the same years, on the other side of the map.
Image credits3 pictures from Wikimedia Commons
- AmbohimangaLemurbaby · CC BY-SA 3.0
- Flag of Portugal (official)Original: Columbano Bordalo Pinheiro Vector: Vítor Luís Rodrigues, António Martins-Tuválk… · Public domain
- Taï National Parkyakovlev.alexey from Moscow, Russia · CC BY-SA 2.0