12/18/1863
Archduke Franz Ferdinand of Austria is born in Graz, Austria Personal
04/10/1864
At Miramar Castle in Trieste, Austria, Archduke Maximilian officially accepts the imperial throne of Mexico US/the World
06/24/1866
At the Battle of Custoza, near Verona, Austrian troops halt the Italian invasion of Venetia. Battles/Soldiers
04/23/1859
Austria demands that Sardinia-Piedmont disarm, and issues a three-day ultimatum Foreign
07/12/1856
Austria forgives Hungarian rebels for their role in 1848 revolution Foreign
07/20/1866
Austrian and Italian naval units clash at Lissa in the first major fleet confrontation of ironclads. Battles/Soldiers
06/18/1866
Austrian troops cross into eastern Prussia setting off full war between Prussia and Austria. US/the World
05/09/1864
Danish and Austrian naval units clash in the North Sea at the Battle of Heligoland US/the World
05/01/1859
Five Austrian army corps have crossed into Piedmont and occupy large areas north of the Po River Foreign
04/26/1859
France tells Austria war on Piedmont-Sardinia would mean war with France Foreign
05/03/1859
French Emperor Napoleon III issues his official declaration of war on the Austrian Empire US/the World
04/23/1859
- 04/25/1859
French troops are starting to depart Paris for Italy to confront the Austrians Foreign
03/22/1859
Great Power conference proposed in Europe to head off war between Austria and Piedmont-Sardinia Foreign
10/20/1860
In Austria-Hungary, Emperor Franz Joseph introduces constitutional reforms US/the World
10/30/1864
In Austria, Prussia and Austria's victorious war against Denmark comes to an official end with the Treaty of Vienna US/the World
06/11/1859
In Italy, the pro-Austrian Duke of Modena flees and a provisional government is formed Foreign
04/27/1859
Italian nationalists in Florence overthrow the Hapsburg Grand Duke Leopold II of Tuscany US/the World
08/12/1866
Italy and Austria sign the Armistice of Cormon, ending their seven week conflict. Battles/Soldiers
06/20/1866
Italy, allied to Prussia, declares war on the Austrian Empire. Battles/Soldiers
04/27/1859
Piedmont-Sardinia rejects Austria's call to disarm Foreign
07/22/1866
Prussia and Austria agree a cease fire and armistice to end their five week conflict. Battles/Soldiers
08/30/1866
Prussia and Austria sign the Peace of Prague, ending the Prussian-Austrian War. Lawmaking/Litigating
04/29/1859
The Austrian Empire declares war on Sardinia-Piedmont US/the World
04/09/1859
The Austrian Empire mobilizes in response to the war preparations of Piedmont-Sardinia Foreign
10/19/1866
The flag of Italy is raised over the formerly Austrian-controlled city of Venice. US/the World
03/09/1859
The Italian Kingdom of Piedmont-Sardinia mobilizes its armed forces for war with Austria Foreign
07/03/1866
The Prussians win the decisive victory of the Prussia-Austria War at the Battle of Königgrätz/Sadowa. Battles/Soldiers
11/04/1866
The results of the plebiscite confirming Austria's ceding of Venice to Italy are announced. US/the World
03/05/1859
The Swiss Federal Council says Switzerland will defend itself and its neutrality, by force if need be Foreign
10/03/1866
The Treaty of Prague ends the Italian-Austrian War and cedes Venetia for transfer to Italy. Lawmaking/Litigating
11/10/1859
Treaty negotiations successfully conclude the late war between France, Austria, and Piedmont US/the World
