Editing 1651 (section)

=== April&ndash;June ===
* [[April 7]] &ndash; [[Shunzhi Emperor|Shunzhi]], Emperor of China, announces in an imperial edict that he will purge corruption from government. 
* [[April 25]] &ndash; [[Thomas Hobbes]] publishes his magnum opus, the political tract ''[[Leviathan (Hobbes book)|Leviathan]]'', in England. <ref>"Leviathan and De Cive", by Karl Schuhmann, in ''Leviathan After 350 Years'', ed. by Luc Foisneau (Clarendon Press, 2004) p.17</ref>
* [[May 12]] &ndash; General [[Marcin Kalinowski]] of [[Poland]] wins the [[Battle of Kopychyntsi]] against [[Zaporozhian Cossacks]] forces under the command of Asand Demka during the [[Khmelnytsky Uprising]] in what is now [[Ukraine]].
* [[May 21]] &ndash; The [[Sovereign Military Order of Malta]] purchases the Caribbean islands of [[Saint Barthélemy]], [[Saint Kitts|Saint Christopher]], [[Saint Croix, U.S. Virgin Islands|Saint Croix]] and [[Collectivity of Saint Martin|Saint Martin]] from the France's [[Compagnie des Îles de l'Amérique]].  The Order will sell the islands in 1665 to the [[French West India Company]].
* [[June 17]] &ndash; [[Franco-Spanish War (1635)|Franco-Spanish War (1635-1659)]]; A squadron of Spanish [[galley]]s under [[John of Austria the Younger]] [[Capture of the galleon Lion Couronné|capture the French galleon ''Lion Couronné'']] off [[Formentera]], [[Balearic Islands]], Spain.
* [[June 30]] &ndash; After three days of fighting in the [[Battle of Berestechko]] in [[Ukraine]], one of the biggest land battles of the 17th century, with some 205,000 troops in the field, the [[Polish–Lithuanian Commonwealth]] Army defeats the [[Zaporozhian Cossacks]].