| 141181 | December 14 | Holiday and observance | Christian feast day:John of the CrossNimatullah Kassab (Maronite Church)Spyridon (Western Church)December 14 (Eastern Orthodox liturgics) |
| 141182 | December 14 | Holiday and observance | Forty-seven Ronin remembrance day (Sengaku-ji, Tokyo) |
| 141183 | December 14 | Holiday and observance | Martyred Intellectuals Day (Bangladesh) |
| 141184 | December 14 | Holiday and observance | Monkey Day |
| 141185 | December 15 | Event | 533 – Vandalic War: Byzantine general Belisarius defeats the Vandals, commanded by King Gelimer, at the Battle of Tricamarum. |
| 141186 | December 15 | Event | 687 – Pope Sergius I is elected. |
| 141187 | December 15 | Event | 1161 – Jin–Song wars: Military officers conspire against Emperor Hailing of the Jin dynasty after a military defeat at the Battle of Caishi, and assassinate the emperor at his camp. |
| 141188 | December 15 | Event | 1167 – Sicilian Chancellor Stephen du Perche moves the royal court to Messina to prevent a rebellion. |
| 141189 | December 15 | Event | 1256 – Hulagu Khan captures and destroys the Hashshashin stronghold at Alamut Castle (in present-day Iran) as part of the Mongol offensive on Islamic southwest Asia. |
| 141190 | December 15 | Event | 1467 – Stephen III of Moldavia defeats Matthias Corvinus of Hungary, with the latter being injured thrice, at the Battle of Baia. |
| 141191 | December 15 | Event | 1778 – American Revolutionary War: British and French fleets clash in the Battle of St. Lucia. |
| 141192 | December 15 | Event | 1791 – The United States Bill of Rights becomes law when ratified by the Virginia General Assembly. |
| 141193 | December 15 | Event | 1864 – American Civil War: Battle of Nashville – Union forces under George Thomas almost completely destroy the Army of Tennessee under John Hood. |
| 141194 | December 15 | Event | 1890 – Hunkpapa Lakota leader Sitting Bull is killed on Standing Rock Indian Reservation, leading to the Wounded Knee Massacre. |
| 141195 | December 15 | Event | 1905 – The Pushkin House is established in Saint Petersburg, Russia, to preserve the cultural heritage of Alexander Pushkin |
| 141196 | December 15 | Event | 1906 – The London Underground's Great Northern, Piccadilly and Brompton Railway opens. |
| 141197 | December 15 | Event | 1913 – Nicaragua becomes a signatory to the Buenos Aires Convention. |
| 141198 | December 15 | Event | 1914 – World War I: The Serbian Army recaptures Belgrade from the invading Austro-Hungarian Army. |
| 141199 | December 15 | Event | 1914 – A gas explosion at Mitsubishi Hōjō coal mine, in Kyushu, Japan, kills 687. |
| 141200 | December 15 | Event | 1917 – World War I: An armistice is reached between the new Bolshevik government and the Central Powers. |
| 141201 | December 15 | Event | 1933 – The Twenty-first Amendment to the United States Constitution officially becomes effective, repealing the Eighteenth Amendment that prohibited the sale, manufacture, and transportation of alcohol. |
| 141202 | December 15 | Event | 1939 – Gone with the Wind receives its premiere at Loew's Grand Theatre in Atlanta, Georgia, United States. |
| 141203 | December 15 | Event | 1941 – The Holocaust: German troops murder over 15,000 Jews at Drobytsky Yar, a ravine southeast of the city of Kharkiv, Ukraine, Soviet Union. |
| 141204 | December 15 | Event | 1942 – World War II: The Battle of Mount Austen, the Galloping Horse, and the Sea Horse begins during the Guadalcanal Campaign. |
| 141205 | December 15 | Event | 1943 – World War II: The Battle of Arawe begins during the New Britain Campaign. |
| 141206 | December 15 | Event | 1945 – Occupation of Japan: General Douglas MacArthur orders that Shinto be abolished as the state religion of Japan. |
| 141207 | December 15 | Event | 1946 – U.S.-backed Iranian troops evict the leadership of the breakaway Republic of Mahabad, putting an end to the Iran crisis of 1946. |
| 141208 | December 15 | Event | 1946 – The first election to the Representative Assembly of French India was held. |
| 141209 | December 15 | Event | 1954 – The Charter for the Kingdom of the Netherlands is signed. |
| 141210 | December 15 | Event | 1960 – Richard Pavlick is arrested for plotting to assassinate U.S. President-Elect John F. Kennedy. |