14 December – Shipwreck of the Salvador, a ship carrying Jewish refugees to Palestine, in the Sea of Marmara. 230 of the 326 passengers died in the wreck.[2]
September 8 - Soviet forces cross the border. They occupy the north-eastern part of Bulgaria along with the key port cities of Varna and Burgas by the next day. By order of the government, the Bulgarian Army offers no resistance.[7][8][9]
8 September – A referendum was held in Bulgaria on whether to become a republic. The result were unanimously in favour of the change, with 95.6% supporting and with 91.7% voter turnout.[11][12][13]
