Editing 1941 (section)

===April===
{{Main|April 1941}}
* [[April]] &ndash; The [[Valley of Geysers]] is discovered on the [[Kamchatka Peninsula]] of Russia, by [[Tatyana Ustinova]].
* [[April 1]] &ndash; [[1941 Iraqi coup d'état|A military coup d'état]], launched by [[Rashid Ali Al-Gaylani]], overthrows the pro-British regime in [[Kingdom of Iraq|Iraq]].
* [[April 4]] &ndash; WWII: Axis forces capture [[Benghazi]].
* [[April 6]] &ndash; WWII: Germany, Italy and Hungary [[Invasion of Yugoslavia|invade Yugoslavia]] and the [[Battle of Greece]] begins.
* [[April 9]] &ndash; The U.S. acquires full military defense rights in [[Greenland]].
* [[April 10]] &ndash; WWII:
** U.S. destroyer {{USS|Niblack|DD-424|6}}, while picking up survivors from a sunken Dutch freighter, drops depth charges on a German [[U-boat]] (the first "shot in anger" fired by America against Germany).<ref>{{cite web|url=http://www.navy.mil/navydata/nav_legacy.asp?id=142|archive-url=https://web.archive.org/web/20120921013513/http://www.navy.mil/navydata/nav_legacy.asp?id=142|url-status=dead|archive-date=September 21, 2012|title=A Brief History of U.S. Navy Destroyers. Part II - World War II (1941-1943)|work=America's Navy|publisher=US Navy|location=Washington, DC|access-date=2018-04-28}}</ref>
** The [[Independent State of Croatia]], a [[puppet state]] of the [[Axis powers]], is established with [[Ustashe]] leader [[Ante Pavelić]] as head (''[[Poglavnik]]'') of the government.
* [[April 12]] &ndash; WWII: German troops enter [[Belgrade]].
* [[April 13]] &ndash; The [[Soviet–Japanese Neutrality Pact]] is signed.<ref name="ref1">{{cite book|last=Quigley|first=Carroll|title=Tragedy And Hope|year=1966|publisher=Macmillan|location=New York|isbn=0-945001-10-X|pages=738|url=https://books.google.com/books?id=KQZxAAAAIAAJ&q=tragedy+and+hope}}</ref> 
* [[April 15]] &ndash; WWII: Axis forces reach [[Halfaya Pass]], on the Libyan-Egyptian frontier.
* [[April 18]] &ndash; WWII:
** The Yugoslav Royal Army capitulates.
** Greek Prime Minister [[Alexandros Koryzis]] commits suicide as German troops approach [[Athens]].
* [[April 19]] &ndash; [[Bertolt Brecht]]'s anti-war play ''[[Mother Courage and Her Children]]'' ({{langx|de|Mutter Courage und ihre Kinder}}) receives its first theatrical production, at the [[Schauspielhaus Zürich]].
* [[April 21]] &ndash; WWII: Greece capitulates to Germany. [[Commonwealth of Nations|Commonwealth]] troops and some elements of the [[Greek Army]] withdraw to [[Crete]].
* [[April 23]] &ndash; The [[America First Committee]] holds its first mass rally in New York City, with [[Charles Lindbergh]] as keynote speaker.
* [[April 25]] &ndash; [[Franklin D. Roosevelt]], at his regular press conference, criticizes Charles Lindbergh by comparing him to the [[Copperhead (politics)|Copperheads]] of the Civil War period. In response, Lindbergh resigns his commission in the U.S. Army Air Corps Reserve on [[April 28]].
* [[April 27]] &ndash; WWII: German troops enter [[Athens]].
* [[April 28]] &ndash; [[World War II persecution of Serbs]]: [[Gudovac massacre]] &ndash; Members of the [[Croatian nationalism|Croatian nationalist]] [[Ustashe]] movement kill around 190 [[Bjelovar]] [[Serbs]] in the village of [[Gudovac]], in the [[Independent State of Croatia]].

[[File:Ansel Adams - National Archives 79-AAB-01.jpg|thumb|right|[[Ansel Adams]] photograph of the [[Hoover Dam]] in 1941.]]