Editing 1986 (section)

===June===
[[File:WEM Galaxyland MindBender Galaxy Orbitter.JPG|thumb|[[June 14]]: [[Mindbender (Galaxyland)|The Mindbender]] at [[Galaxyland]] inside [[West Edmonton Mall]] derails, kills three riders, injures one rider, and slams into a concrete post]]
* [[June]] – Construction of the [[Oosterscheldekering]], the world's largest openable [[storm surge]] [[flood barrier]], is completed in the Netherlands.
* [[June 4]] – [[Jonathan Pollard]] pleads guilty to [[espionage]] for selling top secret United States [[military intelligence]] to [[Israel]].
* [[June 8]] – Former [[United Nations Secretary-General]] [[Kurt Waldheim]] is elected president of Austria.
* [[June 9]] – The [[Rogers Commission]] releases its report on the [[Space Shuttle Challenger|Space Shuttle ''Challenger'']] disaster.
* [[June 12]] – [[South Africa]] declares a nationwide state of emergency.<ref>{{Cite web |last=Archives |first=L. A. Times |date=1986-06-12 |title=Botha Imposes Nationwide Emergency; U.S. Protests : Hundreds Seized in Roundup |url=https://www.latimes.com/archives/la-xpm-1986-06-12-mn-10542-story.html |access-date=2025-02-20 |website=Los Angeles Times |language=en-US}}</ref>
* [[June 14]] – [[Fantasyland (West Edmonton Mall)|Fantasyland]]'s [[Mindbender (Galaxyland)|Mindbender]] derails and kills three people.
* [[June 22]] – In one of the most famous [[FIFA World Cup]] matches, [[Argentina national football team|Argentinian football player]] [[Diego Maradona]] scores one handball goal (nicknamed the "Hand of God") and then dribbles past the entire [[England national football team|English football team]] to score a second goal (nicknamed "The Goal of the Century") with Argentina winning 2–1 against England.
* [[June 23]] – Eric Thomas develops [[LISTSERV]], the first email list management software.<ref>{{cite web |title=1986 |url=http://www.nic.funet.fi/index/FUNET/history/internet/en/1986.html |access-date=2013-01-25}}</ref>
* [[June 29]] – Argentina defeats West Germany 3–2 to win the [[1986 World Cup]] in [[Estadio Azteca]] in [[Mexico City]].