State · 947 – 1187

Jämtland

A state of 947 – 1187 — 240 years in Europe.

Wikidata records no founding for it; the borders dataset maps it from 947 to 1187, and those are the years drawn here.

For the full story, the article on Wikipedia (CC BY-SA 4.0); this page holds what the record says of the state.

Stood: 240 years; 947 – 1187
Most ground: 25,800 km²; in 1003
Symbol: 1; on record, with years

Map: Jämtland in 1003, its borders in gold among its neighbours — Jämtland in 1003, when it held the most ground the borders dataset draws for it: 25,800 km². Its neighbours wear their tints, as on the atlas's own map. Borders from Cliopatria (CC BY 4.0), coast and rivers from Natural Earth, cities from Reba, Reitsma & Seto 2016 (CC BY 4.0), each city under the name it bore that year.

Where it sits in time

Five thousand years, 3000 BCE to 2026; the state in gold.

Ground held, by year

km² inside its borders as the borders dataset draws them, measured on an equal-area grid; a step series, held between the years the dataset maps.

25,700 km² in 947, 25,700 km² in 1187; at its largest 25,800 km² in 1007. Cliopatria, CC BY 4.0.

Flag or arms

Each symbol with the years its own statement gives; the timeline flies the one of the year on screen.

coat of arms, undatedJämtland vapen · CC BY-SA 2.5 · Marmelad

Among all states

Each measure against the states that carry it, never against all of them: a bar is the share of those states below this one.

How long it stood240 years
stood longer than 68% of 3,187 states with a recorded end or still standing.
The most ground it held25,800 km²
held more ground at its peak than 25% of 1,465 states with a border in Cliopatria.
Wars recorded per centurynone
had more wars on record per century than 44% of 3,187 states, counting the wars the atlas hosts under each.

Open in the atlas

On the timeline, 923 – 1211, with everything that stood beside it.
On the map in 1003, live: scrub the year and watch its borders move.
Investigate it: what led to it, what came of it, and its succession analysed.

Wikidata Q211661 (CC0) · borders Cliopatria, CC BY 4.0 · coast and rivers Natural Earth · symbols from Wikimedia Commons, each credited above · data built 2026-10-06 · Pastlas v2.9.1, by Oleh Voronko. The published atlas and its data are for non-commercial use.