Editing 1806 (section)

=== July–September ===
*[[July 4]] – [[Invasion of Naples (1806)|Invasion of Naples]] ([[War of the Third Coalition]]): [[Battle of Maida]] – [[United Kingdom of Great Britain and Ireland|Britain]] defeats the [[First French Empire|French]] in Calabria.
<!--*July 4 – Legendary ship ''[[The Irish Rover]]'' sets sail from the [[Cobh|Cove]] of [[Cork (city)|Cork, Ireland]] for New York. (This episode may be entirely ficticious; if so, it should be removed here) -->
*[[July 10]] – [[Vellore Mutiny]]: [[Company rule in India|Indian]] [[sepoy]]s mutiny against the [[East India Company]], for the first time.
*[[July 12]] – Sixteen German [[Imperial State]]s leave the [[Holy Roman Empire]] and form the [[Confederation of the Rhine]], leading to the collapse of the Empire. [[Liechtenstein]] is given full sovereignty.
*[[July 15]] – [[Pike Expedition]]: Near [[St. Louis, Missouri]], United States Army Lieutenant [[Zebulon Pike]] leads an expedition from [[Fort Bellefontaine]], to explore the American West.
*[[July 18]] – [[1806 Birgu polverista explosion]]: A gunpowder magazine explosion in [[Birgu]], [[Malta Protectorate|Malta]] kills around 200 people.
*[[July 23]] – [[British invasions of the River Plate]]: A British expeditionary force of 1,700 men lands on the left bank of the [[Río de la Plata]] and invades [[Buenos Aires]].
*[[August 6]] – [[Francis II, Holy Roman Emperor|Francis II]], the last [[Holy Roman Emperor]], abdicates, thus ending the [[Holy Roman Empire]] after 844 years. 
*[[August 18]] – English [[Seal hunting|seal hunter]] [[Abraham Bristow]] discovers the [[Auckland Islands]].<ref>"Auckland Islands", in ''Exploring Polar Frontiers: A Historical Encyclopedia'', ed. by William J. Mills (ABC-CLIO, 2003) p39</ref><ref>{{cite journal|first=A. G. E.|last=Jones|title=Captain Abraham Bristow and the Auckland Islands|journal=[[Notes and Queries]]|year=1970|volume=17|issue=10|pages=369–371|doi= 10.1093/nq/17-10-369}}</ref>
*[[September 23]] – The [[Lewis and Clark Expedition]] reaches [[St. Louis, Missouri]], ending a successful exploration of the [[Louisiana Territory]] and the [[Pacific Northwest]]. Their arrival comes "much to the amazement of residents, who had given the travelers up for dead" according to one historian.<ref>{{cite book|first=Lee Ann|last=Sandweiss|title=Seeking St. Louis: Voices from a River City, 1670–2000|publisher=Missouri History Museum|year=2000|page=41}}</ref>
*[[September 25]] – [[Kingdom of Prussia|Prussia]] issues an ultimatum to Paris, threatening war if France does not halt marching its troops through Prussian territory to reach Austria; the message does not reach Napoleon Bonaparte until October 7, and he responds by attacking Prussia.<ref name= Petre>{{cite book|first=F. Loraine|last=Petre|title=Napoleon's Conquest of Prussia – 1806|publisher=John Lane Company|year=1907|page=xv}}</ref>