How these dates were made
Why this bar's edges are floors, not a founding and a fall.
The atlas draws the world at one moment in time, not continuously. This bar runs from the first snapshot in which Croatian kingdom 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 Europe 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 · Europe
Plitvice Lakes
3000 BCE – still standingPolity · Europe
Sweden
Founded 900 CE · attested to 2026 CEConflict · Europe
Byzantine–Arab Wars
629 CE – 1180 CETrade route · Europe
Venice–Constantinople Route
800 CE – 1600 CELandmark · Europe
Giant's Causeway
3000 BCE – still standingPolity · Europe
Denmark
Founded 800 CE · attested to 2026 CEConflict · Europe
Viking Invasions
793 CE – 1066 CETrade route · Europe
Varangian Trade Route
800 CE – 1100 CEDated moments inside this span
Events the timeline places between 900 CE and 900 CE.
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
- Plitvice Lakes National ParkZysko serhii · CC BY-SA 4.0
- Flag of SwedenJon Harald Søby and others. · Public domain
- Arab–Byzantine warsCodex Skylitzes Matritensis, Bibliteca Nacional de Madrid, Vitr. 26-2, Bild-Nr. 77, f 34 … · Public domain
- Giant's Causewaycode poet on flickr. · CC BY-SA 2.0
- Flag of DenmarkMadden and others · Public domain
- Viking expansionAbbey of Saint-Aubin · Public domain