United KingdomandPortugal

12 July 927 · 5 October 1143

Two sourced records set beside each other — the figures each nation publishes, and the events each chronicle records of the other. Compared, never graded.

United Kingdom

12 July 927 — The monarchs of Britain recognise Æthelstan as king of the English

Dossier →Chronicle →

Portugal

5 October 1143 — The Treaty of Zamora recognises Afonso Henriques as king

Dossier →Chronicle →

Shared indicators
42
Domains
9
Crossed events
4
Data through
2026-08-22

The figures, side by side

Each figure is the same observation, with the same source, as on the two dossiers. Every value shows the year it was observed — vintages differ by indicator and nation. A “—” is an absence in the source data, never a zero. Metric names link to the world ranking; values open the figure on its own dossier.

Economy

GBRPRT
  • Observed 2025 / 2025 · figures compared, never graded
  • Observed 2025 / 2025 · figures compared, never graded
  • Observed 2025 / 2025 · figures compared, never graded
  • Observed 2025 / 2025 · figures compared, never graded
  • Observed 2025 / 2025 · figures compared, never graded

Society

GBRPRT
  • Observed 2025 / 2025 · figures compared, never graded
  • Observed 2024 / 2024 · figures compared, never graded
  • Observed 2025 / 2025 · figures compared, never graded
  • Observed 2024 / 2024 · figures compared, never graded

Governance

GBRPRT

Health

GBRPRT
  • Observed 2024 / 2024 · figures compared, never graded
  • Observed 2023 / 2022 · figures compared, never graded
  • Observed 2024 / 2024 · figures compared, never graded
  • Observed 2024 / 2024 · figures compared, never graded
  • Observed 2024 / 2024 · figures compared, never graded

Education

GBRPRT
  • Observed 2021 / 2022 · figures compared, never graded
  • Observed 2023 / 2023 · figures compared, never graded
  • Observed 2023 / 2023 · figures compared, never graded
  • Observed 2023 / 2023 · figures compared, never graded
  • Observed — / 2011 · figures compared, never graded

Technology

GBRPRT
  • Observed 2023 / 2023 · figures compared, never graded
  • Observed 2017 / 2023 · figures compared, never graded
  • Observed 2024 / 2024 · figures compared, never graded
  • Observed 2024 / 2024 · figures compared, never graded
  • Observed 2024 / 2024 · figures compared, never graded

Geography

GBRPRT
  • Observed 2023 / 2023 · figures compared, never graded
  • Observed 2023 / 2023 · figures compared, never graded
  • Observed 2023 / 2023 · figures compared, never graded
  • Observed 2024 / 2024 · figures compared, never graded
  • Observed 2021 / 2021 · figures compared, never graded

Resources

GBRPRT
  • Observed 2021 / 2021 · figures compared, never graded
  • Observed 2021 / 2021 · figures compared, never graded
  • Observed 2021 / 2021 · figures compared, never graded
  • Observed 2021 / 2021 · figures compared, never graded
  • Observed 2024 / 2024 · figures compared, never graded
  • Observed — / 2025 · figures compared, never graded

Military

GBRPRT
  • Observed 2024 / 2024 · figures compared, never graded
  • Observed 2024 / 2024 · figures compared, never graded
  • Observed 2020 / 2020 · figures compared, never graded

Entangled histories

4 events in which either nation’s sourced chronicle names the other — including under earlier names of the same state. Each is the same record, with the same sources, as on its own chronicle; nothing here was written for this page.

  1. 14 Aug 1385

    Battle of Aljubarrota

    After the death of Ferdinand I in 1383 left a daughter married to John I of Castile, the Cortes of Coimbra acclaimed John of Avis (6 April 1385). At Aljubarrota a smaller Portuguese army with English archers defeated Castile's much larger force and secured the crown.

    War & Rupture · from the Portugal chronicle · The Age of Discovery · REFS 1 — Portugal-UK 650: The Anglo-Portuguese Alliance

  2. 9 May 1386

    Treaty of Windsor

    England and Portugal confirmed a 'perpetual league, friendship and confederation', later described by both governments as the oldest alliance still in force.

    Politics & Power · from the Portugal chronicle · The Age of Discovery · REFS 1 — Portugal-UK 650: The Anglo-Portuguese Alliance

  3. 27 Nov 1807

    Court flees to Brazil

    As a French army invaded, the prince regent and royal court sailed for Brazil under British escort, moving the seat of the Portuguese monarchy to Rio de Janeiro.

    War & Rupture · from the Portugal chronicle · Earthquake, Napoleon and the Loss of Brazil · REFS 2 — Peninsular War, John VI, king of Portugal

  4. 1808-1814

    The Peninsular War

    British, Portuguese and Spanish forces fought the French in the Iberian Peninsula, eventually expelling Napoleon's armies from Portugal and Spain.

    War & Rupture · from the Portugal chronicle · Earthquake, Napoleon and the Loss of Brazil · REFS 1 — Peninsular War