When did Bulgaria declare full independence from the Ottoman Empire?

Bulgaria declared its full independence from the Ottoman Empire on October 5, 1908.12

On that date, Ferdinand, who had served as the prince of the autonomous Bulgarian principality since 1887, proclaimed the nation's de jure independence and assumed the title of tsar. This proclamation coincided with the Austro-Hungarian annexation of Bosnia and Herzegovina. Following this declaration, the Grand National Assembly later amended the constitution to officially recognize the title of tsar and grant the monarch the authority to conclude foreign treaties independently.12