| 18187 | February 15 | Holiday and observance | National Day (Serbia) |
| 18188 | February 15 | Holiday and observance | National Flag of Canada Day (Canada) |
| 18189 | February 15 | Holiday and observance | Parinirvana Day, also celebrated on February 8. (Mahayana Buddhism) |
| 18190 | February 15 | Holiday and observance | Susan B. Anthony Day (United States) |
| 18191 | February 15 | Holiday and observance | The ENIAC Day (Philadelphia) |
| 18192 | February 15 | Holiday and observance | The third and final day of Lupercalia, also known as Februa. (Roman Empire) |
| 18193 | February 15 | Holiday and observance | Total Defence Day (Singapore) |
| 18194 | February 16 | Event | 116 – Emperor Trajan sends laureatae to the Roman Senate at Rome on account of his victories and being conqueror of Parthia. |
| 18195 | February 16 | Event | 1249 – Andrew of Longjumeau is dispatched by Louis IX of France as his ambassador to meet with the Khagan of the Mongol Empire. |
| 18196 | February 16 | Event | 1270 – Grand Duchy of Lithuania defeats the Livonian Order in the Battle of Karuse. |
| 18197 | February 16 | Event | 1630 – Dutch forces led by Hendrick Lonck capture Olinda in what was to become part of Dutch Brazil. |
| 18198 | February 16 | Event | 1646 – Battle of Torrington, Devon – the last major battle of the first English Civil War. |
| 18199 | February 16 | Event | 1699 – First Leopoldine Diploma is issued by the Holy Roman Emperor, recognizing the Greek Catholic clergy enjoyed the same privileges as Roman Catholic priests in the Principality of Transylvania. |
| 18200 | February 16 | Event | 1742 – Spencer Compton, Earl of Wilmington, becomes British Prime Minister. |
| 18201 | February 16 | Event | 1804 – First Barbary War: Stephen Decatur leads a raid to burn the pirate-held frigate USS Philadelphia. |
| 18202 | February 16 | Event | 1852 – Studebaker Brothers wagon company, precursor of the automobile manufacturer, is established. |
| 18203 | February 16 | Event | 1862 – American Civil War: General Ulysses S. Grant captures Fort Donelson, Tennessee. |
| 18204 | February 16 | Event | 1866 – Spencer Compton Cavendish, Marquess of Hartington becomes British Secretary of State for War. |
| 18205 | February 16 | Event | 1874 – Silver Dollar becomes legal US tender. |
| 18206 | February 16 | Event | 1881 – The Canadian Pacific Railway is incorporated by Act of Parliament at Ottawa (44th Vic., c.1). |
| 18207 | February 16 | Event | 1899 – Iceland's first football club, Knattspyrnufélag Reykjavíkur, is founded. |
| 18208 | February 16 | Event | 1918 – The Council of Lithuania unanimously adopts the Act of Independence, declaring Lithuania an independent state. |
| 18209 | February 16 | Event | 1923 – Howard Carter unseals the burial chamber of Pharaoh Tutankhamun. |
| 18210 | February 16 | Event | 1930 – The Romanian Football Federation joins FIFA. |
| 18181 | February 15 | Holiday and observance | Candlemas (Eastern Orthodox Church) |
| 18182 | February 15 | Holiday and observance | Christian feast day:Blessed Michał SopoćkoClaude de la ColombièreFaustinus and JovitaQuinidiusSigfrid of SwedenThomas Bray (Episcopal Church)Vartan (a holiday for Armenians in Lebanon)February 15 (Eastern Orthodox liturgics) |
| 18183 | February 15 | Holiday and observance | Earliest day on which Family Day can fall, while February 21 is the latest celebrated on the third Monday in February. (parts of Canada) |
| 18184 | February 15 | Holiday and observance | Earliest day on which Washington's Birthday can fall, while February 21 is the latest celebrated on the third Monday in February. (United States) |
| 18185 | February 15 | Holiday and observance | John Frum Day (Vanuatu) |
| 18186 | February 15 | Holiday and observance | Liberation Day (Afghanistan) |