Pastlasby Oleh Voronko

State · 439 – 1284

Celtic Britons

A state of 439 – 1284 — 845 years in Europe. The atlas records 8 things within it — wars and battles 4 · treaties 1 · people 3.

  • Wikidata records a founding in 1201 BCE and no end; the borders dataset maps it from 439 to 1284, 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
845 years
439 – 1284
Most ground
206,800 km²
in 439
Within it
8
recorded rows
Map: Celtic Britons in 439, its borders in gold among its neighbours
Celtic Britons in 439, when it held the most ground the borders dataset draws for it: 206,800 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.
Celtic Britons in 439, at its largest

439 · at its largest · 206,800 km²

Celtic Britons in 1236, last mapped

1236 · last mapped · 14,500 km²

The rise and the fall in one frame: the same ground at the years the borders dataset first maps it, maps it largest, and last maps it.

Where it sits in time

3000 BCE2000 BCE1000 BCE110002000Celtic Britons: 439 – 1284

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.

60080010001200

206,800 km² in 439, 14,500 km² in 1284; at its largest 206,800 km² in 439. Cliopatria, CC BY 4.0.

What happened within it, by century

Every row the atlas hosts under this state, by the century it began in: wars and battles in red, risings, regime changes and massacres beside them, everything else in grey. A tall bar is a century the record is full for, which is partly a fact about Wikipedia.

400 – 499: 1 recorded — 0 wars and battles, 0 risings, regime changes and massacres, 1 other400500 – 599: 2 recorded — 2 wars and battles, 0 risings, regime changes and massacres, 0 other500600 – 699: 1 recorded — 0 wars and battles, 0 risings, regime changes and massacres, 1 other600700 – 799: 0 recorded — 0 wars and battles, 0 risings, regime changes and massacres, 0 other700800 – 899: 1 recorded — 1 wars and battles, 0 risings, regime changes and massacres, 0 other800900 – 999: 1 recorded — 0 wars and battles, 0 risings, regime changes and massacres, 1 other9001000 – 1099: 0 recorded — 0 wars and battles, 0 risings, regime changes and massacres, 0 other10001100 – 1199: 1 recorded — 1 wars and battles, 0 risings, regime changes and massacres, 0 other11001200 – 1299: 1 recorded — 0 wars and battles, 0 risings, regime changes and massacres, 1 other1200

400 – 4991 row

  • Dwynwen · religious leader · 450 – 460

500 – 5992 rows · 2 wars and battles

600 – 6991 row

  • Wilfrid · religious leader · 634 – 709

800 – 8991 row · 1 wars and battles

900 – 9991 row

  • Asser · writer · 900 – 909

1100 – 11991 row · 1 wars and battles

1200 – 12991 row

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 stood845 years

    stood longer than 96% of 3,187 states with a recorded end or still standing.

  • The most ground it held206,800 km²

    held more ground at its peak than 59% 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

Wikidata Q849967 (CC0) · borders Cliopatria, CC BY 4.0 · coast and rivers Natural Earth · data built 2026-10-06 · Pastlas v2.9.1, by Oleh Voronko. The published atlas and its data are for non-commercial use.