Editing 1739 (section)

=== October&ndash;December ===
* [[October 3]] &ndash; The [[Treaty of Niš (1739)|Treaty of Niš]] is signed.
* [[October 12]] &ndash; The town of [[Utuado, Puerto Rico]] was founded by Sebastian de Morfi.
* [[October 17]] &ndash; The [[Foundling Hospital]] is created in London by [[royal charter]].
* [[October 23]] &ndash; [[War of Jenkins' Ear]]: Great Britain declares war on Spain.  
* [[November 20]]&ndash;[[November 22|22]] &ndash; [[War of Jenkins' Ear]] &ndash; [[Battle of Porto Bello (1739)|Battle of Porto Bello]]: British marine forces capture the [[Panama]]nian silver-exporting town of [[Portobelo]] from the Spanish.
* [[December 30]]&ndash; Months of unseasonably cold weather begin in Ireland, precipitating the [[Irish Famine (1740–41)|Irish Famine of 1740]], known as ''Bliain an Áir'' ("The Year of Slaughter").  A January 5 dispatch from Dublin to the ''Stamford Mercury'' says "Since last Wednesday we have had the most violent cold Weather that was ever known in this Kingdom; hard Frost began that evening, which has continued ever since with a very stormy Wind at South-East."<ref>{{cite book |first1=Christine |last1=Kinealy |author-link1=Christine Kinealy |first2=Gerard |last2=Moran |title=The History of the Irish Famine |publisher=[[Routledge]] |year=2019}}</ref> At least 13% of Ireland's population dies of starvation in the year that follows.<ref>{{cite book |editor-first=Cathal |editor-last=Póirtéir |title=The Great Irish Famine |publisher=[[Mercier Press]] |year=1955 |pages=53–55}}</ref>