Editing 1640 (section)

=== January&ndash;March ===
* [[January 6]] &ndash; The [[Siege of Salses]] ends almost six months after it had started on June 9, 1639, with the French defenders surrendering to the Spanish attackers.
* [[January 17]] &ndash; [[Action of 12–17 January 1640|A naval battle over control of what is now Brazil]], between ships of the [[Dutch Republic]] and those of the Kingdom of [[Portugal]], ends after five days of fighting with the Dutch driving the Portuguese away from the port of [[Recife]].
* [[February 9]] &ndash; [[Ibrahim of the Ottoman Empire|Ibrahim I]] (1640–[[1648]]) succeeds [[Murad IV]] ([[1623]]–1640) as [[Ottoman Emperor|Sultan]] of the [[Ottoman Empire]].
* [[March 8]]&ndash;[[March 13|13]] &ndash; [[Siege of Galle (1640)|Siege of Galle]]: Dutch troops take the strategic fortress at [[Galle]], [[Sri Lanka]] from the Portuguese.<ref>{{cite book|title=The Cambridge History of India|publisher=Cambridge University Press|year=1963|page=44}}</ref>