Editing 1668 (section)

=== April&ndash;June ===
* [[April 21]] &ndash; [[Henry Brouncker, 3rd Viscount Brouncker|Henry Brouncker]] is expelled from the English House of Commons for [[treason]] during the 1665 [[Battle of Lowestoft]] during the [[Second Anglo-Dutch War]].
* [[April 22]] &ndash; [[Tenzin Dalai Khan]] is proclaimed as the new Protector King of Tibet by the [[5th Dalai Lama]], following the death of Tenzin's father, [[Dayan Khan]].
* [[April 24]] &ndash; [[Treaty of Breda (1667)|The Treaty of Breda]], signed in 1667 and ending the [[Second Anglo-Dutch War]], goes into effect worldwide. 
* [[April 25]] &ndash; The [[Swedish Empire]] signs a treaty with England and the Dutch Republic to join the [[Triple Alliance (1668)|Triple Alliance]].
* [[May 2]] &ndash; The first [[Treaty of Aix-la-Chapelle (1668)|Treaty of Aix-la-Chapelle]] ends the [[War of Devolution]].
* [[May 18]] &ndash; [[Charles Sedley]]'s comedy ''[[The Mulberry-Garden]]'' premieres at the Theatre Royal in London. 
* [[June 4]] &ndash; [[English Tangier|Tangier]], a city in Morocco that had come under control of the English colonial empire in 1661, is elevated by the English crown to the status of "free city".
* [[June 12]] &ndash; [[John Dryden]]'s play ''[[An Evening's Love]], or The Mock Astrologer'' premieres at the Theatre Royal in London in a performance by the [[King's Company]] players for King Charles and Queen Catherine.  
* [[June 16]] &ndash; A group of Spanish Jesuit missionaries become the first European settlers to arrive at the island of [[Guam]], founding a mission to convert the [[Chamorro people]] of the [[Mariana Islands]] to Christianity.  
* [[June 18]] &ndash; [[Petro Doroshenko]] is proclaimed by the Russian Empire as the [[hetman]] of all of [[Ukraine]], after having previously been granted leadership of the western half. [[Ivan Briukhovetsky]], who had ruled the eastern half and then led an uprising, is executed on the same day.