Side by side
Lithuania and Poland compared
Two sourced records set beside each other — the figures each nation publishes, and the events each chronicle records of the other. Compared, never graded.
966 — Mieszko I is baptised and the first unified Polish state enters Latin Christendom
- Shared indicators
- 42
- Domains
- 9
- Crossed events
- 7
- Data through
- 2026-08-10
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.
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Entangled histories
7 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.
- 1385
Union of Krewo
Grand Duke Jogaila agreed to marry Queen Jadwiga of Poland, convert to Christianity and unite the two realms; baptised as Wladyslaw II Jagiello, he founded the Jagiellonian dynasty.
Politics & Power · from the Lithuania chronicle · Union with Poland, Christianization and the Age of Vytautas · Grand Duchy of Lithuania, Union of Lublin
- 1385
Union of Krewo and the Jagiellonian dynasty
The agreement at Krewo arranged the marriage of Queen Jadwiga to Jogaila of Lithuania, who was baptised as Wladyslaw II Jagiello, joining Poland and Lithuania under a new dynasty.
Politics & Power · from the Poland chronicle · The Piast and Jagiellonian Kingdom · Poland: History, Union of Lublin
- 1387
Christianization of Lithuania
A bishopric was founded at Vilnius and Lithuania, the last major pagan state in Europe, formally accepted Latin Christianity following the union with Poland.
Religion · from the Lithuania chronicle · Union with Poland, Christianization and the Age of Vytautas · Grand Duchy of Lithuania
- 15 Jul 1410
Battle of Grunwald (Zalgiris)
Polish and Lithuanian forces under Wladyslaw II Jagiello and Grand Duke Vytautas annihilated the army of the Teutonic Knights, ending the Order's expansion in the Baltic.
War & Rupture · from the Lithuania chronicle · Union with Poland, Christianization and the Age of Vytautas · Battle of Grunwald (1410), Vytautas the Great
- 1 Jul 1569
Union of Lublin
Poland and the Grand Duchy of Lithuania united into the federal Polish-Lithuanian Commonwealth, ruled by an elected monarch and a common Sejm, with Lithuania keeping its own laws and institutions.
Politics & Power · from the Lithuania chronicle · The Commonwealth, the Partitions and the National Revival · Union of Lublin, History of Lithuania
- 1 Jul 1569
Union of Lublin
Poland and the Grand Duchy of Lithuania united into a single federal state, the Polish-Lithuanian Commonwealth, ruled by an elected monarch and a common Sejm, one of Europe's largest powers.
Politics & Power · from the Poland chronicle · The Polish-Lithuanian Commonwealth: Golden Age and Decline · Union of Lublin, The Act of the Union of Lublin document
- Oct 1920
Zeligowski's Mutiny and the seizure of Vilnius
Polish forces under General Zeligowski, secretly directed by Pilsudski, seized Vilnius and its region; a 'Republic of Central Lithuania' was created and annexed by Poland in 1922.
War & Rupture · from the Lithuania chronicle · Independence and the Interwar Territorial Disputes · Vilnius dispute