Wikipedia:Selected anniversaries/May 18
This is a list of selected May 18 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 article or picture 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.
May 18: Shavuot begins at sunset (Judaism, 2010); International Museum Day
- 1848 – During the aftermath of the March Revolution in the German Confederation, the Frankfurt Parliament opened in the Paulskirche in Frankfurt am Main.
- 1896 – The U.S. Supreme Court ruled in the landmark case Plessy v. Ferguson, upholding the legality of racial segregation in public transportation under the "Separate but equal" doctrine.
- 1944 – World War II: Polish forces under Lieutenant General Władysław Anders captured Monte Cassino, Italy, after a four-month battle.
- 1955 – Operation Passage to Freedom, the evacuation of 310,000 Vietnamese civilians, soldiers and non-Vietnamese members of the French Army from communist North Vietnam to South Vietnam following the end of the First Indochina War, ended.
- 1980 – The stratovolcano Mount St. Helens erupted (pictured), killing 57 people in southern Washington State, reducing hundreds of square miles to wasteland, and causing over a billion U.S. dollars in damage.