| 138901 | December 8 | Death | 2008 – Oliver Postgate, English voice actor, director, producer, and screenwriter (b. 1925) |
| 138902 | December 8 | Death | 2008 – Robert Prosky, American actor (b. 1930) |
| 138903 | December 8 | Death | 2009 – Kenneth Biros, American murderer (b. 1958) |
| 138904 | December 8 | Death | 2009 – Luis Días, Dominican singer-songwriter and guitarist (b. 1952) |
| 138905 | December 8 | Death | 2012 – Jagannathan, Indian actor (b. 1938) |
| 138906 | December 8 | Death | 2012 – Jerry Brown, American football player (b. 1987) |
| 138907 | December 8 | Death | 2012 – John Gowans, Scottish-English 16th General of The Salvation Army (b. 1934) |
| 138908 | December 8 | Death | 2012 – Johnny Lira, American boxer (b. 1951) |
| 138909 | December 8 | Death | 2012 – Khan Sarwar Murshid, Bangladeshi academic and diplomat (b. 1924) |
| 138910 | December 8 | Death | 2013 – John Cornforth, Australian-English chemist and academic, Nobel Prize laureate (b. 1917) |
| 138911 | December 8 | Death | 2013 – Don Mitchell, American actor (b. 1943) |
| 138912 | December 8 | Death | 2013 – Hung Sin-nui, Chinese actress and singer (b. 1924) |
| 138913 | December 8 | Death | 2013 – Sándor Szokolay, Hungarian composer and academic (b. 1931) |
| 138914 | December 8 | Death | 2013 – Richard S. Williamson, American lawyer and diplomat (b. 1949) |
| 138915 | December 8 | Death | 2014 – Tom Gosnell, Canadian politician (b. 1951) |
| 138916 | December 8 | Death | 2014 – Russ Kemmerer, American baseball player and coach (b. 1930) |
| 138917 | December 8 | Death | 2014 – Nedunuri Krishnamurthy, Indian singer (b. 1927) |
| 138918 | December 8 | Death | 2014 – Knut Nystedt, Norwegian organist and composer (b. 1915) |
| 138919 | December 8 | Holiday and observance | Bodhi Day (Japan) |
| 138920 | December 8 | Holiday and observance | CARICOM-Cuba Day (Caribbean Community (CARICOM) and Cuba) |
| 138921 | December 8 | Holiday and observance | Christian feast day:Clement of Ohrid (Julian Calendar), and its related observances:EuchariusFeast of the Immaculate Conception (public holiday in several countries, a holy day of obligation in others), and its related observances:Conception of the Blesse |
| 138922 | December 8 | Holiday and observance | Constitution Day (Romania) |
| 138923 | December 8 | Holiday and observance | Constitution Day (Uzbekistan) |
| 138924 | December 8 | Holiday and observance | Earliest day on which National Tree Planting Day (Malawi) can fall, while December 14 is the latest celebrated on the second Monday in December |
| 138925 | December 8 | Holiday and observance | National Youth Day (Albania) |
| 138926 | December 9 | Event | 480 – Odoacer, first King of Italy, occupies Dalmatia. He later establishes his political power with the co-operation of the Roman Senate. |
| 138927 | December 9 | Event | 536 – Gothic War: The Byzantine general Belisarius enters Rome unopposed the Gothic garrison flee the capital. |
| 138928 | December 9 | Event | 730 – Battle of Marj Ardabil: The Khazars annihilate an Umayyad army and kill its commander, Al-Jarrah Ibn Abdallah Al-Hakami. |
| 138929 | December 9 | Event | 1425 – The Catholic University of Leuven is founded. |
| 138930 | December 9 | Event | 1531 – The Virgin of Guadalupe first appears to Juan Diego at Tepeyac, Mexico City. |