Side by side

Bulgaria and Romania 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.

🇧🇬Bulgaria

681Byzantium acknowledges Bulgaria as an independent state

Dossier →Chronicle →

🇷🇴Romania

1859Alexandru Ioan Cuza is elected prince of both Moldavia and Wallachia

Dossier →Chronicle →

Shared indicators
43
Domains
9
Crossed events
4
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.

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. Jun–Aug 1913

    Second Balkan War and the loss of Macedonia

    Bulgaria attacked its former allies over the division of Macedonia and was crushed by Serbia, Greece, Romania and the Ottomans; the Treaty of Bucharest left most of Macedonia to its rivals and Southern Dobruja to Romania.

    War & Rupture · from the Bulgaria chronicle · The Balkan Wars, the World Wars and the Saving of the Jews · Second Balkan War, Balkan Wars

  2. 30 Aug 1940

    Second Vienna Award and Southern Dobruja

    Under German and Italian arbitration Romania ceded northern Transylvania to Hungary; in September southern Dobruja was ceded to Bulgaria, costing Romania about 30% of its territory and people.

    Politics & Power · from the Romania chronicle · Dismemberment, the Second World War and communist rule · Romania

  3. 7 Sep 1940

    Treaty of Craiova returns Southern Dobruja

    By the Treaty of Craiova, Romania ceded Southern Dobruja back to Bulgaria, restoring the 1912 frontier, the one Axis-era border change that was not reversed after the Second World War.

    Politics & Power · from the Bulgaria chronicle · The Balkan Wars, the World Wars and the Saving of the Jews · Treaty of Craiova, Treaty of Craiova and the return of South Dobruja

  4. 1 Jan 2007

    Accession to the European Union

    On 1 January 2007 Romania, with Bulgaria, joined the European Union, raising it to twenty-seven member states and completing Romania's integration into the West.

    Politics & Power · from the Romania chronicle · Revolution, democracy and the European turn · Bulgaria and Romania join the European Union