| 9th January 1951 | The new United Nations headquarters officially opens in New York City. |
| 20th January 1951 | Avalanches in the Alps kill 240 people in Switzerland, Austria and Italy during the ‘Winter of Terror‘. |
| 12th March 1951 | The comic strip “Dennis the Menace” appears in newspapers across the United States for the first time. |
| 11th April 1951 | The Stone of Scone resurfaces on the altar of Arbroath Abbey after it had been removed from Westminster Abbey on Christmas day, 1950. |
| 21st April 1951 | The National Olympic Committee of the Soviet Union is formed. The USSR first participates in the Olympic Games at Helsinki in 1952. |
| 3rd May 1951 | King George VI opens London's Royal Festival Hall as a patron. |
| 14th May 1951 | The first volunteer-run passenger trains run on the Talyllyn Railway in Wales. |
| 1st July 1951 | Judy Garland opens the first of fourteen concerts in Dublin, at the Theatre Royal. |
| 12th August 1951 | “The Catcher in the Rye” by J.D. Salinger is published. |
| 10th September 1951 | The United Kingdom begins an economic boycott of Iran. |
| 26th September 1951 | A blue sun is seen over Europe for two days. The effect is due to ash from forest fires that had raged in Canada four month previously. |
| 16th October 1951 | Prime Minister Liaquat Ali Khan of Pakistan is assassinated. |
| 24th October 1951 | U.S. President Harry Truman declares an official end to the war with Germany. |
| 26th October 1951 | Winston Churchill is re-elected Prime Minister; his foreign minister is Anthony Eden. |
| 31st October 1951 | "Scrooge", starring Alastair Sim, opens in England. |
| 23rd December 1951 | The film “The African Queen“, starring Humphrey Bogart and Katharine Hepburn, premieres in Hollywood. |