This is a list of selected May 11 anniversaries that appear in the "On this day" section of the Main Page. To suggest a new item, in most cases, you can be bold and edit this page. Please read the selected anniversaries guidelines before making your edit. However, if your addition might be controversial or on a day that is or will soon be on the Main Page, please post your suggestion on the talk page instead.
Please note that the events listed on the Main Page are chosen based more on relative article quality and to maintain a mix of topics, not based solely on how important or significant their subjects are. Only four to five events are posted at a time and thus not everything that is "most important and significant" can be listed. In addition, an event is generally not posted this year if it is also the subject of the scheduled featured articleorpicture of the day.
To report an error when this appears on the Main Page, see Main Page errors. Please remember that this list defers to the supporting articles, so it is best to achieve consensus and make any necessary changes there first.
Use only ONE image at a time
| Blurb | Reason |
|---|---|
| 330 – The city of Byzantium was consecratedasNova Roma, which became known as Constantinople, the new capital of the Roman Empire under Emperor Constantine the Great. | refimprove |
| 1647 – Peter Stuyvesant arrived in New Amsterdam to replace Willem KieftasDirector-GeneralofNew Netherland, the Dutch colonial settlement in present-day New York City. | trivial "in popular culture" examples |
| 1792 – American sea captain Robert Gray became the first known explorer of European descent to navigate the Columbia River in the Pacific Northwest. | unreliable sources |
| 1918 – Tapa Tchermoeff became the only Prime Minister of the short-lived Mountainous Republic of the Northern Caucasus. | Tchermoeff: no footnotes; Republic: refimprove |
| 1946 – The United Malays National Organisation, today Malaysia's largest political party, was founded, originally to oppose the constitutional framework of the Malayan Union. | multiple issues |
| 1949 – Siam was officially renamed Thailand, a name unofficially in use since 1939. | refimprove, original research, date not in article, section too long |
| 1960 – Israeli Mossad agents captured Adolf Eichmann, a Nazi leader and fugitive war criminal who was sometimes referred to as "the architect of the Holocaust", hiding in Argentina. | appears on December 15 |
| 1985 – During an association football match between Bradford City and Lincoln CityinBradford, England, a flash fire consumed one side of the Valley Parade stadium, killing 56 attendees. | refimprove sections |
| 1996 – A severe blizzardonMount Everest caused the deaths of eight climbers, contributing to that year becoming the deadliest in the mountain's history at the time. | lots of CN tags (12) |
| * 1867 – The major powers of Europe signed the Treaty of London to resolve a crisis over the political status of Luxembourg between France and Prussia. | Too much uncited |
