Editing 1720 (section)

=== July&ndash;September ===
* [[July 12]] &ndash; Under the authority of the [[Bubble Act]], the Lords Justices in Great Britain attempt to curb some of the excesses of the stock markets during the "[[South Sea Bubble]]". They dissolve a number of petitions for patents and charters, and abolish more than 80 joint-stock companies of dubious merit, but this has little effect on the creation of "Bubbles", ephemeral joint-stock companies created during the hysteria of the times.<ref>{{cite book|first=Charles|last=MacKay|author-link=Charles Mackay (author)|title=[[Extraordinary Popular Delusions and the Madness of Crowds]]|publisher=Harriman House Classics|year=2003}}<!-- I do not know the page number, only have access to online version. I think MacKay's discussion of this action is around page 71, the second mention of the notorious "a company for carrying out an undertaking of great advantage, but nobody to know what it is". --></ref>
* [[July 14]] &ndash; (July 3 O.S.)  The [[Treaty of Frederiksborg]] is signed between Denmark-Norway and Sweden, ending the [[Great Northern War]].
* [[July 27]] &ndash; The [[Battle of Grengam]] takes place in the Ledsund strait between the island communities of Föglö and Lemland. It is the last major naval battle in the Great Northern War taking place in the Åland Islands, marking the end of Russian and Swedish offensive naval operations in Baltic waters.
* [[August 14]] &ndash; The Spanish [[Villasur expedition]], which set out on [[June 16]] from [[New Mexico]], with the intention of checking French influence on the [[Great Plains]] of North America, ends in failure, as it is ambushed by a [[Pawnee people|Pawnee]] and [[Otoe]] force.
* [[September 30]] &ndash; "South Sea Bubble": The English stock market crashes, with dropping prices for stock in the [[South Sea Company]].<ref>"Commerce", in ''A Cyclopedia of Commerce and Commercial Navigation'', Volume 1, ed. by J. Smith Homans, (Harper & Brothers, 1859) p391</ref>