Editing 1959 (section)

===April===
{{Main|April 1959}}
* [[April 6]] – The [[31st Academy Awards]] ceremony is held in Hollywood. Musical film ''[[Gigi (1958 film)|Gigi]]'' receives a record 9 Oscars.
* [[April 8]] – The [[Inter-American Development Bank]] (IADB) is established.
* [[April 9]] – [[NASA]] announces its selection of seven [[Aviator#Military|military pilots]] to become the first U.S. [[astronaut]]s, later known as the '[[Mercury Seven]]'.
* [[April 10]] – Crown Prince [[Akihito]] of Japan marries [[Empress Michiko|Shōda Michiko]], the first commoner to marry into the [[Imperial House of Japan]].
* [[April 25]] – The [[Saint Lawrence Seaway]] linking the [[Great Lakes]] and the Atlantic Ocean officially opens to shipping.
* [[April 27]] – [[National People's Congress]] elects [[Liu Shaoqi]] as [[President of the People's Republic of China|Chairman of the People's Republic of China]], as a successor of [[Mao Zedong]].