| 146731 | December 30 | Event | 1944 – King George II of Greece declares a regency, leaving the throne vacant. |
| 146732 | December 30 | Event | 1947 – King Michael I of Romania is forced to abdicate by the Soviet Union-backed Communist government of Romania. |
| 146733 | December 30 | Event | 1948 – The Cole Porter Broadway musical, Kiss Me, Kate (1,077 performances), opens at the New Century Theatre and becomes the first show to win the Best Musical Tony Award. |
| 146734 | December 30 | Event | 1958 – The Guatemalan Air Force sinks several Mexican fishing boats alleged to have breached maritime borders, killing three and sparking international tension. |
| 146735 | December 30 | Event | 1965 – Ferdinand Marcos becomes President of the Philippines. |
| 146736 | December 30 | Event | 1972 – Vietnam War: The United States halts heavy bombing of North Vietnam. |
| 146737 | December 30 | Event | 1977 – For the second time, Ted Bundy escapes from his cell in Glenwood Springs, Colorado. |
| 146738 | December 30 | Event | 1981 – In the 39th game of his third NHL season, Wayne Gretzky scores five goals, giving him 50 on the year and setting a new NHL record previously held by Maurice Richard and Mike Bossy, who earlier had each scored 50 goals in 50 games. |
| 146739 | December 30 | Event | 1993 – Israel and Vatican City establish diplomatic relations. |
| 146740 | December 30 | Event | 1996 – In the Indian state of Assam, a passenger train is bombed by Bodo separatists, killing 26. |
| 146741 | December 30 | Event | 1996 – Proposed budget cuts by Benjamin Netanyahu spark protests from 250,000 workers who shut down services across Israel. |
| 146742 | December 30 | Event | 1997 – In the worst incident in Algeria's insurgency, the Wilaya of Relizane massacres, 400 people from four villages are killed. |
| 146743 | December 30 | Event | 2000 – Rizal Day bombings: A series of bombs explode in various places in Metro Manila, Philippines within a period of a few hours, killing 22 and injuring about a hundred. |
| 146744 | December 30 | Event | 2004 – A fire in the República Cromagnon nightclub in Buenos Aires, Argentina kills 194. |
| 146745 | December 30 | Event | 2005 – Tropical Storm Zeta forms in the open Atlantic Ocean, tying the record for the latest tropical cyclone ever to form in the North Atlantic basin. |
| 146746 | December 30 | Event | 2006 – Madrid–Barajas Airport is bombed. |
| 146747 | December 30 | Event | 2006 – The Indonesian passenger ferry MV Senopati Nusantara sinks in a storm, resulting in at least 400 deaths. |
| 146748 | December 30 | Event | 2006 – Former President of Iraq Saddam Hussein is executed. |
| 146749 | December 30 | Event | 2009 – A segment of the Lanzhou–Zhengzhou–Changsha pipeline ruptures in Shaanxi, China, and approximately 150,000 l (40,000 US gal) of diesel oil flows down the Wei River before finally reaching the Yellow River. |
| 146750 | December 30 | Event | 2009 – A suicide bomber kills nine people at Forward Operating Base Chapman, a key facility of the Central Intelligence Agency in Afghanistan. |
| 146751 | December 30 | Event | 2011 – Owing to a change of time zone the day is skipped in Samoa and Tokelau. |
| 146752 | December 30 | Event | 2013 – More than 100 people are killed when anti-government forces attack key buildings in Kinshasa, Democratic Republic of the Congo. |
| 146753 | December 30 | Birth | 39 – Titus, Roman emperor (d. 81) |
| 146754 | December 30 | Birth | 1204 – Abû 'Uthmân Sa'îd ibn Hakam al Qurashi, Portuguese ruler (d. 1282) |
| 146755 | December 30 | Birth | 1371 – Vasily I of Moscow (d. 1425) |
| 146756 | December 30 | Birth | 1642 – Vincenzo da Filicaja, Italian poet (d. 1707) |
| 146757 | December 30 | Birth | 1673 – Ahmed III, Ottoman sultan (d. 1736) |
| 146758 | December 30 | Birth | 1678 – William Croft, English organist and composer (d. 1727) |
| 146759 | December 30 | Birth | 1722 – Charles Yorke, English politician, Lord Chancellor of Great Britain (d. 1770) |
| 146760 | December 30 | Birth | 1724 – Louis-Jean-François Lagrenée, French painter (d. 1805) |