Editing 1737 (section)

=== January&ndash;March ===
* [[January 5]] &ndash; [[Spain]] and the [[Holy Roman Empire]] sign instruments of cession at [[Pontremoli]] in the [[Grand Duchy of Tuscany]] in Italy, with the Empire receiving control of Tuscany and the [[Grand Duchy of Parma and Piacenza]], in return for [[Charles III of Spain|Don Carlos of Spain]] being recognized as King of Naples and King of Sicily.<ref>{{cite book|first=W. N.|last=Hargreaves-Mawdsley|title=Eighteenth-Century Spain 1700–1788: A Political, Diplomatic and Institutional History|publisher=Palgrave Macmillan|location=London|year=1979}}</ref>
* [[January 9]] &ndash; The Empires of [[Austria]] and [[Russia]] enter into a secret military alliance that leads to Austria's disastrous entry into the Russo-Turkish War.<ref>{{cite book|first=Arthur|last=Hassall|title=The Balance of Power, 1715-1789|publisher=Macmillan|location=New York|year=1907|page=119}}</ref>
* [[January 18]] &ndash; In [[Manila]], a peace treaty is signed between Spain's [[Governor-General of the Philippines]], Fernándo Valdés y Tamon, and the Sultan [[Azim ud-Din I of Sulu]], recognizing Azim's authority over the islands of the [[Sulu Archipelago]].<ref>''Historical Calendar'' (Philippine National Historical Commission, 1970), p11</ref><ref>[https://kahimyang.com/kauswagan/articles/889/today-in-philippine-history-january-18-1737-a-peace-treaty-was-signed-between-the-governor-general-the-sultan-of-sulu "Today in Philippine History"], The Kahimyang Project.</ref>
* [[February 20]] &ndash; [[France]]'s Foreign Minister, [[Germain Louis Chauvelin]], is dismissed by King [[Louis XV]]'s Chief Minister, Cardinal [[André-Hercule de Fleury]]
* [[February 27]] &ndash; French scientists [[Henri-Louis Duhamel du Monceau]] and [[Georges-Louis Leclerc de Buffon]] publish the first study correlating past weather conditions with an examination of [[Dendrochronology#Growth rings|tree rings]].<ref>"On the cause of the eccentricity of the woody layers which one perceives when one cuts horizontally the trunk of a tree" (''De la cause de l'excentricité des couches ligneuses qu'on apperçoit quand on coupe horisontalement le tronc d'un arbre'').</ref>
* [[March 16]] &ndash; In [[Paris]], representatives of [[Spain]] and [[Portugal]] sign an armistice bringing an end to the [[Spanish–Portuguese War (1735–1737)|Spanish–Portuguese War]] over the area now occupied by the nation of [[Uruguay]] and the area now occupied by the state of [[Rio Grande do Sul]] in [[Brazil]].  The news does not reach the fighting parties until five months later.<ref name=Marley>{{cite book|first=David|last=Marley|title=Wars of the Americas: A Chronology of Armed Conflict in the New World, 1492 to the Present|location=Santa Barbara|publisher=ABC-CLIO|year=1998|page=250}}</ref>
* [[March 28]] &ndash; The Battle of Delhi takes place between the [[Maratha Confederacy|Maratha Empire]] and the [[Mughal Empire|Mughals]].