Editing 1650 (section)

=== July&ndash;September ===
* [[July 13]] &ndash; Italian priest and astronomer [[Gerolamo Sersale]] of Naples takes advantage of a full moon and draws an extremely detailed lunar map, which is then engraved and reproduced for other astronomers.
* [[July 22]] &ndash; Having completed his invasion of Ireland, England's General [[Oliver Cromwell]] begins the [[Anglo-Scottish war (1650–1652)|war against the Kingdom of Scotland]], crossing from [[Northumberland]] at [[Berwick-upon-Tweed]] into [[Berwickshire]], and leads troops toward [[Edinburgh]].
* [[July 29]] &ndash; [[William II, Prince of Orange]], stadtholder of Holland, attempts to conquer the rest of the Netherlands and attempts a [[Attack on Amsterdam (1650)|coup d'état against the Dutch Republic]].
* [[August 13]] &ndash; [[Colonel]] [[George Monck]] forms ''Monck's Regiment of Foot'', forerunner of the [[Coldstream Guards]].
* [[September 3]] &ndash; [[Third English Civil War]]: [[Battle of Dunbar (1650)]] &ndash; [[Roundhead|Parliamentarian]] forces under [[Oliver Cromwell]] defeat a Scottish army, commanded by [[David Leslie, 1st Lord Newark|David Leslie]].<ref>{{Historic Environment Scotland|num=BTL7|desc=Battle of Dunbar II|access-date=June 18, 2020}}</ref>
* [[September 19]] &ndash; [[Treaty of Hartford (1650)|Treaty of Hartford]]: the [[English Commonwealth]]'s [[Connecticut Colony]] and the [[Dutch Republic]]'s colony of [[New Netherland]] establish their frontiers in [[North America]].<ref name="Cassell's Chronology">{{cite book|last=Williams|first=Hywel|title=Cassell's Chronology of World History|url=https://archive.org/details/cassellschronolo0000will/page/263|url-access=registration|location=London|publisher=Weidenfeld & Nicolson|year=2005|isbn=0-304-35730-8|pages=[https://archive.org/details/cassellschronolo0000will/page/263 263–264]}}</ref>
* [[September 27]] &ndash; The [[Kolumbo]] volcano on [[Santorini]] experiences a massive eruption (VEI 6).
* [[September 29]] &ndash; [[Henry Robinson (writer)|Henry Robinson]] opens his ''Office of Addresses and Encounters'', a form of employment exchange, in [[Threadneedle Street]], London.