Editing 1638 (section)

=== April–June ===
* [[April 3]] – Preacher [[John Wheelwright]] is banished from [[Boston]] and founds [[Exeter, New Hampshire]].
* [[April 14]] – The Netherlands colonizes [[Mauritius]], with colonists from the ship ''Dragon'' going ashore after sighting it the day before, an event chronicled by British traveler [[Peter Mundy]].<ref>Peter Mundy, ed. by Lavinia Mary Anstey, ''The Travels of Peter Mundy in Europe and Asia, 1608-1667'' (Hakluyt Society, 1919) p. 343</ref><ref>Jolyon C. Parish, ''The Dodo and the Solitaire: A Natural History'' (Indiana University Press, 2013) p.37</ref>
* [[April 15]] – [[Tokugawa shogunate|Shogunate]] forces defeat the last remnants of the [[Shimabara Rebellion]], in the fortress of Hara. In the aftermath, suppression of Christianity is strictly enforced, Portuguese traders are expelled and Japan enters more than two centuries of isolationism.
* [[April 25]] – Settlement of what will become [[New Haven, Connecticut]] begins.<ref>Laura A. Macaluso, ''Historic Treasures of New Haven: Celebrating 375 Years of the Elm City'' (Arcadia Publishing, 2013)</ref>
* [[May 13]] – Construction begins on the [[Red Fort]] in [[Delhi]] (India) for [[Mughal Emperor]] [[Shah Jahan]] who is transferring his capital there from [[Agra]].
* [[May 23]] – The Kandyan Treaty is signed between [[Sinhala Kingdom|Singhala]] King [[Rajasinha II of Kandy|Rajasimha II]] and the Dutch, to rid [[Ceylon]] of the Portuguese.
* [[June 20]] – [[Eighty Years' War]]: [[Battle of Kallo]] – Spanish troops under [[Cardinal-Infante Ferdinand of Austria|Ferdinand of Austria]] defeat a much larger Dutch force, near [[Antwerp]].
* [[June 27]] – [[Cyril Lucaris|Patriarch Cyril of Constantinople]] is deposed for [[high treason]], strangled and thrown into the sea by [[Janissaries]], on [[Ottoman Empire|Ottoman]] [[Sultan]] [[Murad IV]]'s command.