The European Central Bank is illuminated with the Bulgarian flag during a test run in Frankfurt, Germany, on Dec. 30, 2025. The euro will be introduced in Bulgaria on Jan. 1, 2026. (Helmut Fricke / ...
Bulgaria on Thursday became the 21st country to switch to the euro, a milestone met with both cheers and fears, nearly 20 years after the Balkan nation joined the European Union. At midnight (2200 GMT ...