Editing 1805 (section)

=== July–September ===
* [[July 9]] – [[Muhammad Ali of Egypt|Muhammad Ali Pasha]] founds his [[dynasty]] in Egypt.
* [[July 26]] – [[1805 Molise earthquake]]: 5,573 people in [[Molise]] and [[Campania]], Italy, are killed.
* [[August 12]] – [[Lewis and Clark Expedition]]: U.S. Army Captain [[Meriwether Lewis]] reaches the [[Continental Divide of the Americas]], crossing to the west at [[Lemhi Pass]].<ref>Karen Jones and John Wills, ''The American West: Competing Visions'' (Edinburgh University Press, 2009) p17
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* [[August 25]] – [[Treaty of Bogenhausen]] is concluded between France and [[Electorate of Bavaria|Bavaria]] forming a military alliance
* [[August 27]] – Napoleon orders the [[Grande Armée]] ("The Great Army") of some 165,000 men to march to the [[Rhine|Rhine River]] to deal with the Austrian and Russian threats on the frontier. The French army is organized into seven corps and is supported by 36–40 cannons each. Napoleon orders Marshal [[Joachim Murat]] with his [[I Cavalry Corps (Grande Armée)|I Cavalry Corps]] (some 20,000 men), to make feint attacks through the [[Black Forest]] in south-west [[Germany]].
* [[August 29]] – [[Francis II, Holy Roman Emperor|Emperor Franz I of Austria]] and his council of ministers vote in favor of going to war with France.<ref>Kinley Brauer and William E. Wright, ''Austria in the Age of the French Revolution, 1789-1815'' (Berghahn Books, 1990) p11</ref>
* [[August 31]] – British Army General [[Sir David Baird, 1st Baronet|David Baird]] departs from [[Cork (city)|Cork]], leading an expedition to capture the [[Cape of Good Hope]].  Their ship arrives on January 4.<ref>"Baird, David", in ''A New General Biographical Dictionary'', Volume 3, ed. by Hugh James Rose (T. Fellowes, 1857) p20</ref>
* [[September 21]] – [[Ferdinand I of the Two Sicilies|King Ferdinand of Naples]] signs a treaty in Paris agreeing to keep Naples neutral during the war between France and the allied powers.<ref>''Tales of the Wars; Or, Naval and Military Chronicle'' (William Mark Clark, 1836) p329</ref>
* [[September 29]] – [[Horatio Nelson, 1st Viscount Nelson|Admiral Nelson]] of the British [[Royal Navy]] takes command of the fleet off the coast of [[Cadiz]], in order to counteract the navies of France and Spain.<ref>''The Englishman's library: comprising a series of historical, biographical, and national information'' (Charles Knight, 1824) p165</ref>