Editing 1939 (section)

===April===
{{main|April 1939}}
* [[April 1]] &ndash; The [[Spanish Civil War]] comes to an end when the last of the Republican forces surrender.
* [[April 3]]
** [[Adolf Hitler]] orders the German military to start planning for ''[[Fall Weiss (1939)|Fall Weiß]]'', the codename for the invasion of Poland.
** [[Refik Saydam]] forms the new government in [[Turkey]] (12th government; Refik Saydam has served twice as a prime minister).
* [[April 4]]
** The [[Slovak–Hungarian War]] ends, with Slovakia ceding eastern territories to Hungary.
** Polish Foreign Minister Colonel [[Józef Beck]], in London, signs a treaty designed to bilateralize [[Neville Chamberlain]]'s "Polish Guarantee" of March 31.
** [[Faisal II of Iraq|Faisal II]] becomes King of [[Iraq]] aged three, following the death of his father, [[Ghazi of Iraq|Ghazi]], in an automobile incident.<ref>{{cite book|title=The International Who's who|url=https://books.google.com/books?id=CrpWAAAAIAAJ|year=1957|publisher=Europa Publications Limited|page=xiv|access-date=March 9, 2021|archive-date=September 16, 2021|archive-url=https://web.archive.org/web/20210916232654/https://books.google.com/books?id=CrpWAAAAIAAJ|url-status=live}}</ref>
* [[April 7]] 
** [[Italian invasion of Albania]] begins; [[Zog I of Albania|King Zog]] flees into exile, initially in Greece, with his wife and [[Leka, Crown Prince of Albania|Crown Prince Skander]] (born April 5).
** [[Joseph Lyons]], 10th [[Prime Minister of Australia]], dies in office from a heart attack at the age of 59. He is briefly replaced by his deputy [[Earle Page]], who serves as the 11th Prime Minister, until a [[United Australia Party|UAP]] [[United Australia Party leadership election, 1939|leadership election]] is held to replace Lyons. 
* [[April 9]] &ndash; African-American singer [[Marian Anderson]] performs before 75,000 people at the [[Lincoln Memorial]] in Washington, D.C., after having been denied the use both of [[Constitution Hall]] by the [[Daughters of the American Revolution]], and of a public high school by the federally controlled [[Washington, D.C.|District of Columbia]]. [[First Lady of the United States]] [[Eleanor Roosevelt]] resigns from the DAR because of their decision.
* [[April 11]] &ndash; Hungary leaves the [[League of Nations]].
* [[April 14]] &ndash; At a meeting in Paris, French Foreign Minister [[Georges Bonnet]] meets with Soviet Ambassador Jakob Suritz, and suggests that a "peace front" comprising France, the Soviet Union, Great Britain, Poland and Romania would deter Germany from war.
* [[April 18]] 
** The Soviet Union proposes a "peace front" to resist aggression.
** [[Robert Menzies]] is [[United Australia Party leadership election, 1939|elected]] leader of the [[United Australia Party]], and consequently becomes the 12th [[Prime Minister of Australia]], defeating former Prime Minister [[Billy Hughes]]. However, he will not be sworn in until [[April 26]], due to [[Earle Page]] and his [[National Party of Australia|Country Party]] refusing to serve under him.
* [[April 25]] &ndash; The [[Federal Security Agency]] (FSA) is founded in the United States, along with the [[Civilian Conservation Corps]] and [[United States Public Health Service|Public Health Service]].
* [[April 28]] &ndash; In a speech before the Reichstag, [[Adolf Hitler]] renounces the [[Anglo-German Naval Agreement]] and the [[German–Polish declaration of non-aggression]].
* [[April 30]] &ndash; The [[1939 New York World's Fair]] opens.