1947 – The first Bulgarian Five-Year Plan is initiated to transform the Bulgarian economy.
On This Day in Bulgaria
Daily historical facts, events, and anniversaries from Bulgarian history — a recurring, date-based series.
On This Day in Bulgaria: December 2
1912 – An armistice is signed, marking a temporary pause in the First Balkan War.
On This Day in Bulgaria: December 3
1923 – Formation of the first Bulgarian Air Force division begins, marking a new era in Bulgarian military capabilities.
On This Day in Bulgaria: December 4
1904 – Sofia University establishes its first permanent faculty, laying the foundation for modern academic excellence.
On This Day in Bulgaria: December 5
1916 – The Bulgarian army captures the city of Ploiesti, Romania, in a significant victory during WWI.
On This Day in Bulgaria: December 6
1944 – The first Bulgarian post-war symphony concert is held in Sofia, symbolizing cultural revival.
On This Day in Bulgaria: December 7
1989 – Bulgarian opposition parties unite to demand democratic reforms from the government.
On This Day in Bulgaria: December 8
1888 – Sofia University is officially founded, becoming the most important higher education institution in the country.
On This Day in Bulgaria: December 9
1915 – Bulgarian forces secure the key border post at Gevgelija, consolidating their front line.
On This Day in Bulgaria: December 10
1912 – Bulgarian aircraft complete their first aerial reconnaissance mission, marking a milestone in aviation history.
On This Day in Bulgaria: December 11
1908 – The Bulgarian government and the Ottoman Empire signed an agreement recognizing Bulgaria’s independence.
On This Day in Bulgaria: December 15
1945 – The Bulgarian government announces the reorganization of the national banking sector, centralizing financial control.
On This Day in Bulgaria: December 12
1944 – The first major post-war trial of war criminals begins in Sofia, organized by the new government.
On This Day in Bulgaria: December 13
1917 – Bulgarian army successfully defends the strategic positions in the Vardar sector against Allied attacks.
On This Day in Bulgaria: December 14
1922 – Bulgaria joins the International Telecommunication Union, integrating into the modern communication network.
On This Day in Bulgaria: December 16
1903 – A new law on the development of the Bulgarian railway network is passed, connecting major economic regions.
On This Day in Bulgaria: December 17
1954 – The first major power plant in Bulgaria starts operations, boosting the country’s industrial capacity.
On This Day in Bulgaria: December 18
1918 – The Bulgarian government and Allied powers agree on terms for the repatriation of prisoners of war.
On This Day in Bulgaria: December 19
1985 – A landmark Bulgarian film about national history premieres in Sofia, gaining international acclaim.
On This Day in Bulgaria: December 20
1990 – The Bulgarian government announces major price liberalizations as part of the country’s economic transition.
On This Day in Bulgaria: December 21
1989 – The Bulgarian Grand National Assembly formally votes to repeal the leading role of the Communist Party.
On This Day in Bulgaria: December 22
1917 – Bulgarian army celebrates Christmas at the front during the difficult winter campaigns of WWI.
On This Day in Bulgaria: December 23
1991 – The Bulgarian government and the European Economic Community (EEC) sign a trade agreement.
On This Day in Bulgaria: December 24
1945 – Bulgaria celebrates its first post-war Christmas, marking a slow but sure return to normal life.
On This Day in Bulgaria: December 25
1877 – Russian and Bulgarian troops continue their advance through the Shipka Pass, crucial for the liberation of the country.
On This Day in Bulgaria: December 26
1900 – A major fire in central Sofia destroys historical buildings, leading to modernized urban planning.
On This Day in Bulgaria: December 27
1944 – The Bulgarian government announces the start of national construction projects to rebuild the country’s infrastructure.
On This Day in Bulgaria: December 28
1930 – Bulgaria and Turkey sign a friendship and non-aggression pact, stabilizing relations in the region.
On This Day in Bulgaria: December 29
1915 – The Bulgarian government announces new financial measures to control inflation after the start of WWI.
On This Day in Bulgaria: December 30
1909 – The first national conference of Bulgarian educators is held in Sofia, aiming to reform the educational system.
On This Day in Bulgaria: December 31
1992 – The Bulgarian government and the IMF sign a cooperation agreement for economic stabilization.










