December 12 (December 12) is the 346th day of the year in the Gregorian calendar (347th in leap years). There are 19 more days until the end of the year.
627 - In the battle of Nineveh, the Byzantine emperor Heraclius defeats the Persians, deciding the outcome of the greatest and last of all the Byzantine-Persian wars.
1830 - In Belgrade on Tasmajdan, in the presence of Prince Milos and the Belgrade Pasha, the hatisherif of the Turkish Sultan Mahmud II on the autonomy of Serbia was solemnly read.
1873 - The dinar is introduced in Serbia as a monetary unit, which eliminates the monetary chaos and the use of more than 40 types of other people's coins - ducats, forints, thalers.
1894 - Japanese troops invade Korea.
1896 - Guglielmo Marconi presents wireless radio telegraphy in London for the first time.
1913 - A painting of Leonardo da Vinci's Mona Lisa is found in Florence, two years after it was stolen from the Louvre Museum in Paris.
1915 - President of the Republic of China Yuan Shikai reintroduces the monarchy and proclaims himself King of China.
1915 - The first aircraft made entirely of metal, designed by German Hugo Junkers, takes off.
1918 - After the end of the First World War, the Serbian army enters Zemun, ending the two-century rule of the Habsburg monarchy in that city.
1920 - The Constituent Assembly of the Kingdom of Serbs, Croats and Slovenes is constituted. The work of the assembly, chaired by Croatian politician Ivan Ribar, lasted more than six months and ended with the adoption of the Vidovdan Constitution on June 28, 1921.
1936 - Marshal Zhang Xueliang arrests Chinese Generalissimo Chiang Kai-shek.
1940 - A World War II pact is signed with Hungary, ending World War II, with the aim of improving relations with Germany.
1942 - German forces begin Operation Winter Storm, trying to unblock besieged Axis forces during the Battle of Stalingrad.
1963 - Kenya becomes an independent state within the British Commonwealth with Jom Kenyat as Prime Minister. On the same day in 1964, she became a republic, and Kenya became the first president.
1969 - Greece withdraws from the Council of Europe, thus avoiding being expelled from the European institution for its military regime and human rights violations.
1979 - A group of generals carry out a military coup in South Korea and seize power.
1983 - Shiite extremists activate au