| 18871 | February 18 | Event | 1268 – The Livonian Order is defeated by Dovmont of Pskov in the Battle of Rakvere. |
| 18872 | February 18 | Event | 1332 – Amda Seyon I, Emperor of Ethiopia begins his campaigns in the southern Muslim provinces. |
| 18873 | February 18 | Event | 1478 – George, Duke of Clarence, convicted of treason against his older brother Edward IV of England, is executed in private at the Tower of London. |
| 18874 | February 18 | Event | 1637 – Eighty Years' War: Off the coast of Cornwall, England, a Spanish fleet intercepts an important Anglo-Dutch merchant convoy of 44 vessels escorted by 6 warships, destroying or capturing 20 of them. |
| 18875 | February 18 | Event | 1745 – The city of Surakarta, Central Java is founded on the banks of Bengawan Solo River, and becomes the capital of the Kingdom of Surakarta. |
| 18876 | February 18 | Event | 1766 – A mutiny by captive Malagasy begins at sea on the slave ship Meermin, leading to the ship's destruction on Cape Agulhas in present-day South Africa and the recapture of the instigators. |
| 18877 | February 18 | Event | 1781 – Fourth Anglo-Dutch War: Captain Thomas Shirley opens his expedition against Dutch colonial outposts on the Gold Coast of Africa (present-day Ghana). |
| 18878 | February 18 | Event | 1791 – Congress passes a law admitting the state of Vermont to the Union, effective 4 March 1791, after that state had existed for 14 years as a de facto independent largely unrecognized state. |
| 18879 | February 18 | Event | 1797 – French Revolutionary Wars: Sir Ralph Abercromby and a fleet of 18 British warships invade Trinidad. |
| 18880 | February 18 | Event | 1814 – Napoleonic Wars: The Battle of Montereau. |
| 18881 | February 18 | Event | 1861 – In Montgomery, Alabama, Jefferson Davis is inaugurated as the provisional President of the Confederate States of America. |
| 18882 | February 18 | Event | 1861 – With Italian unification almost complete, Victor Emmanuel II of Piedmont, Savoy and Sardinia assumes the title of King of Italy. |
| 18883 | February 18 | Event | 1865 – American Civil War: Union forces under Major General William T. Sherman set the South Carolina State House on fire during the burning of Columbia. |
| 18884 | February 18 | Event | 1873 – Bulgarian revolutionary leader Vasil Levski is executed by hanging in Sofia by the Ottoman authorities. |
| 18885 | February 18 | Event | 1878 – John Tunstall is murdered by outlaw Jesse Evans, sparking the Lincoln County War in Lincoln County, New Mexico. |
| 18886 | February 18 | Event | 1885 – Adventures of Huckleberry Finn by Mark Twain is published in the United States. |
| 18887 | February 18 | Event | 1900 – Second Boer War: Imperial forces suffer their worst single-day loss of life on Bloody Sunday, the first day of the Battle of Paardeberg. |
| 18888 | February 18 | Event | 1906 – Édouard de Laveleye forms the Belgian Olympic Committee in Brussels. |
| 18889 | February 18 | Event | 1911 – The first official flight with air mail takes place from Allahabad, United Provinces, British India (now India), when Henri Pequet, a 23-year-old pilot, delivers 6,500 letters to Naini, about 10 kilometres (6.2 mi) away. |
| 18890 | February 18 | Event | 1913 – Pedro Lascuráin becomes President of Mexico for 45 minutes this is the shortest term to date of any person as president of any country. |
| 18891 | February 18 | Event | 1930 – While studying photographs taken in January, Clyde Tombaugh discovers Pluto. |
| 18892 | February 18 | Event | 1930 – Elm Farm Ollie becomes the first cow to fly in a fixed-wing aircraft and also the first cow to be milked in an aircraft. |
| 18893 | February 18 | Event | 1932 – The Empire of Japan declares Manzhouguo (the obsolete Chinese name for Manchuria) independent from the Republic of China. |
| 18894 | February 18 | Event | 1938 – During the Nanking Massacre the Nanking Safety Zone International Committee is renamed "Nanking International Rescue Committee" and the safety zone in place for refugees falls apart. |
| 18895 | February 18 | Event | 1942 – World War II: The Imperial Japanese Army begins the systematic extermination of perceived hostile elements among the Chinese in Singapore. |
| 18896 | February 18 | Event | 1943 – The Nazis arrest the members of the White Rose movement. |
| 18897 | February 18 | Event | 1943 – Joseph Goebbels delivers his Sportpalast speech. |
| 18898 | February 18 | Event | 1946 – Sailors of the Royal Indian Navy mutiny in Bombay harbour, from where the action spreads throughout the Provinces of British India, involving 78 ships, twenty shore establishments and 20,000 sailors |
| 18899 | February 18 | Event | 1947 – First Indochina War: The French gain complete control of Hanoi after forcing the Viet Minh to withdraw to mountains. |
| 18900 | February 18 | Event | 1954 – The first Church of Scientology is established in Los Angeles. |