Editing 1778 (section)

=== July&ndash;September ===
* [[July 3]] &ndash; [[American Revolutionary War]]: The [[Battle of Wyoming]] takes place near [[Wilkes-Barre, Pennsylvania]], ending in a terrible defeat for the local colonists.<ref>{{cite book|author1=Harrison Wick|author2=Luzerne Country Historical Society|title=Luzerne County|url=https://books.google.com/books?id=gYPlqdCp2nEC&pg=PA101|year=2011|publisher=Arcadia Publishing|isbn=978-0-7385-7378-6|pages=101}}</ref>
* [[July 4]] &ndash; [[American Revolutionary War]]: [[George Rogers Clark]] [[Illinois campaign|takes Kaskaskia]].
* [[July 10]] &ndash; [[Louis XVI of France]] declares war on the [[Kingdom of Great Britain]].
* [[July 26]] &ndash; In the Russian Empire, the forced [[Emigration of Christians from the Crimea (1778)|emigration of Christians from the Crimea]] to [[Pryazovia]] begins.<ref>{{Cite book |last=Beketov |first=V. M. |title=Регіональне і загальне в історії: Тези міжнародної наукової конференції, присвяченої 140-річчю від дня народження Д.І.Яворницького та 90-літтю XIII Археологічного з'їзду (9 листопада 1995 р.). |publisher=[[Institute of History of Ukraine]] |year=1995 |isbn=5-7707-8671-X |location=Dnipro |pages=262–264 |language=uk |trans-title=Regional and general in history: Abstracts from the international scientific conference dedicated to the 140th anniversary of the birth of D.I. Yavornytsky and the 90th anniversary of the XIII Archaeological Congress (9 November 1995) |contribution=З історії переселення греків з Криму на Маріупольщину: Митрополит Ігнатій (Газадінов) |access-date=13 March 2023 |contribution-url=http://new.museum.dp.ua/uk/article0564.html |via=[[Dmytro Yavornytsky National Historical Museum of Dnipropetrovsk]] |trans-contribution=From the history of the relocation of the Greeks from the Crimea to the Mariupol region: Metropolitan Ignatius (Gazadinov) |contributor-last=Kozina |contributor-first=N. I.}}</ref>
* [[July 27]] &ndash; [[American Revolutionary War]]: [[Battle of Ushant (1778)|First Battle of Ushant]] &ndash; [[Kingdom of Great Britain|British]] and French fleets fight to a standoff.
* [[August 3]] &ndash; The [[La Scala]] Opera House opens in [[Milan]], with the première of [[Antonio Salieri]]'s ''[[Europa riconosciuta]]''. 
* [[August 26]] &ndash; [[Triglav]], at {{convert|2,864|m|ft}} above sea level the highest peak of [[Slovenia]], is ascended for the first time by four men: Luka Korošec, Matevž Kos, Štefan Rožič, and Lovrenc Willomitzer, on [[Sigmund Zois]]' initiative.
* [[August 29]] &ndash; [[American Revolutionary War]]: The tactically inconclusive [[Battle of Rhode Island]] takes place, after which the [[Continental Army]] abandons its position on [[Aquidneck Island]].
* [[September]] &ndash; The ''[[Massachusetts Banishment Act]]'', providing punishment for [[Loyalist (American Revolution)|Loyalists]], is passed.
* [[September 7]] &ndash; [[American Revolutionary War]]: [[Invasion of Dominica (1778)|Invasion of Dominica]] &ndash; The French capture the British fort there, before the latter is aware that France has entered the war in the [[Franco-American alliance]]. 
* [[September 17]] &ndash; The [[Treaty of Fort Pitt]] is signed, the first formal treaty between the United States and a [[Native Americans in the United States|Native American]] tribe (the [[Lenape]] or Delaware).
* [[September 19]] &ndash; The [[Continental Congress]] passes the first [[United States federal budget|budget of the United States]].