| 29221 | March 16 | Event | 1660 – The Long Parliament of England is dissolved so as to prepare for the new Convention Parliament. |
| 29222 | March 16 | Event | 1689 – The 23rd Regiment of Foot or Royal Welch Fusiliers is founded. |
| 29223 | March 16 | Event | 1782 – American Revolutionary War: Spanish troops capture the British-held island of Roatán. |
| 29224 | March 16 | Event | 1792 – King Gustav III of Sweden is shot he dies on March 29. |
| 29225 | March 16 | Event | 1802 – The Army Corps of Engineers is established to found and operate the United States Military Academy at West Point. |
| 29226 | March 16 | Event | 1812 – Siege of Badajoz (March 16 – April 6) – British and Portuguese forces besieged and defeated French garrison during the Peninsular War. |
| 29227 | March 16 | Event | 1815 – Prince Willem proclaims himself King of the United Kingdom of the Netherlands, the first constitutional monarch in the Netherlands. |
| 29228 | March 16 | Event | 1818 – In the Second Battle of Cancha Rayada, Spanish forces defeated Chileans under José de San Martín. |
| 29229 | March 16 | Event | 1861 – Edward Clark becomes Governor of Texas, replacing Sam Houston, who has been evicted from the office for refusing to take an oath of loyalty to the Confederacy. |
| 29230 | March 16 | Event | 1864 – American Civil War: During the Red River Campaign, Union troops reach Alexandria, Louisiana. |
| 29231 | March 16 | Event | 1865 – American Civil War: The Battle of Averasborough began as Confederate forces suffer irreplaceable casualties in the final months of the war. |
| 29232 | March 16 | Event | 1870 – The first version of the overture fantasy Romeo and Juliet by Tchaikovsky receives its première performance. |
| 29233 | March 16 | Event | 1872 – The Wanderers F.C. won the first FA Cup, the oldest football competition in the world, beating Royal Engineers A.F.C. 1-0 at The Oval in Kennington, London. |
| 29234 | March 16 | Event | 1894 – Jules Massenet's opera Thaïs is first performed. |
| 29235 | March 16 | Event | 1900 – Sir Arthur Evans purchased the land around the ruins of Knossos, the largest Bronze Age archaeological site on Crete. |
| 29236 | March 16 | Event | 1916 – The 7th and 10th US cavalry regiments under John J. Pershing cross the US–Mexico border to join the hunt for Pancho Villa. |
| 29237 | March 16 | Event | 1924 – In accordance with the Treaty of Rome, Fiume becomes annexed as part of Italy. |
| 29238 | March 16 | Event | 1926 – History of Rocketry: Robert Goddard launches the first liquid-fueled rocket, at Auburn, Massachusetts. |
| 29239 | March 16 | Event | 1935 – Adolf Hitler orders Germany to rearm herself in violation of the Treaty of Versailles. Conscription is reintroduced to form the Wehrmacht. |
| 29240 | March 16 | Event | 1936 – Warmer-than-normal temperatures rapidly melt snow and ice on the upper Allegheny and Monongahela rivers and lead to a major flood in Pittsburgh. |
| 29241 | March 16 | Event | 1939 – From Prague Castle, Hitler proclaims Bohemia and Moravia a German protectorate. |
| 29242 | March 16 | Event | 1939 – Marriage of Princess Fawzia of Egypt to Mohammad Reza Pahlavi, Shah of Iran. |
| 29243 | March 16 | Event | 1940 – First person killed in a German bombing raid on the UK in World War II during a raid on Scapa Flow in the Orkney Islands, James Isbister. |
| 29244 | March 16 | Event | 1942 – The first V-2 rocket test launch. It exploded at lift-off. |
| 29245 | March 16 | Event | 1945 – World War II: The Battle of Iwo Jima ended, but small pockets of Japanese resistance persisted. |
| 29246 | March 16 | Event | 1945 – Ninety percent of Würzburg, Germany is destroyed in only 20 minutes by British bombers. 5,000 are killed. |
| 29247 | March 16 | Event | 1950 – Communist Czechoslovakia's ministry of foreign affairs asks nuncios of Vatican to leave the country. |
| 29248 | March 16 | Event | 1958 – The Ford Motor Company produces its 50 millionth automobile, the Thunderbird, averaging almost a million cars a year since the company's founding. |
| 29249 | March 16 | Event | 1962 – A Flying Tiger Line Super Constellation disappears in the western Pacific Ocean, with all 107 aboard missing and presumed dead. |
| 29250 | March 16 | Event | 1966 – Launch of Gemini 8, the 12th manned American space flight and first space docking with the Agena target vehicle. |