Editing 1963 (section)

===February===
{{Main|February 1963}}
* [[February 5]] &ndash; The [[European Court of Justice]]'s ruling in ''[[Van Gend en Loos v Nederlandse Administratie der Belastingen]]'' establishes the principle of [[direct effect]], one of the basic tenets of [[European Union law]].
* [[February 8]] &ndash; Travel, financial and commercial transactions by United States citizens to [[Cuba]] are made illegal by the John F. Kennedy Administration.
* [[February 10]] &ndash; Five Japanese cities located on the northernmost part of [[Kyūshū]] are merged and become the city of [[Kitakyūshū]], with a population of more than 1&nbsp;million.
* [[February 12]] &ndash; [[Northwest Orient Airlines Flight 705]] crashes in the Florida [[Everglades]], killing all 43 aboard.
* [[February 14]] &ndash; [[Harold Wilson]] becomes leader of the opposition [[Labour Party (UK)|Labour Party]] in the United Kingdom;<ref>{{cite news |url=https://www.expressandstar.com/days/1950-75/1963.html |archive-url=https://web.archive.org/web/20020628220806/http://www.expressandstar.com/days/1950-75/1963.html |archive-date=2002-06-28 |title=Dallas: JFK is shot dead |newspaper=[[Express & Star]] |location=Wolverhampton}}</ref> in October 1964 he becomes prime minister. 
* [[February 21]] &ndash; The 5.6 {{M|w|link=y}} [[1963 Marj earthquake|Marj earthquake]] affects northern Libya with a maximum Mercalli intensity of VIII (''Severe''), causing 290–375 deaths and 375–500 injuries.
* [[February 27]] &ndash; [[Juan Bosch (politician)|Juan Bosch]] takes office as the 41st president of the [[Dominican Republic]].