* 1866 – Austro-Prussian War ends with the Treaty of Prague.

Three wars led to military successes and helped to convince German people to do this: the Second war of Schleswig against Denmark in 1864, the Austro-Prussian War against Austria in 1866, and the Franco-Prussian War against the Second French Empire in 1870 – 71.

When the Austro-Prussian War broke out in 1866, Albert then Crown Prince ( German: Kronprinz ), took up the command of the Saxon forces opposing the Prussian Army of Prince Frederick Charles of Prussia.

Three wars led to military successes and helped to persuade German people to do this: the Second war of Schleswig against Denmark in 1864, the Austro-Prussian War in 1866, and the Franco-Prussian War against France in 1870 – 71.

The German Confederation ended as a result of the Austro-Prussian War of 1866 between the constituent Confederation entities of the Austrian Empire and its allies on one side and the Kingdom of Prussia and its allies on the other.

As a consequence, Hanover passed to William IV's brother, Ernest Augustus, and remained a kingdom until 1866, when it was annexed by Prussia during the Austro-Prussian war.

* 1866 – Austro-Prussian War: Battle of Lissa – The Austrian Navy

* 1866 – Battle of Custoza: an Austrian army defeats the Italian army during the Austro-Prussian War.

* 1866 – Austro-Prussian War is decided at the Battle of Königgratz, resulting in Prussia taking over as the prominent German nation from Austria.

In 1866, the Austro-Prussian war resulted in the dissolution of the Germanic Confederation and Luxembourg was declared neutral in perpetuity.

In 1866 the Duchy and with it Limburg passed to Prussia in the wake of the Austro-Prussian War.

This road, both north and south of the platz, was named Königgrätzer Straße after the Prussian victory over Austria at the Battle of Königgrätz on 3 July 1866, in the Austro-Prussian War.

In 1866 Venetia was ceded by France, who had obtained it from Austria at the end of the Austro-Prussian War, to the new Kingdom of Italy, which had been created in 1861 under the Savoy monarchy.

Austria then entered the nineteenth century as part of the German Confederation until the Austro-Prussian War of 1866 excluded her, and Austria then continued as the Austro-Hungarian Empire ( 1867 – 1918 ).

Following the Congress of Vienna in 1815 Austria, which had emerged as the Austrian Empire became part of the German Confederation till the Austro-Prussian war of 1866, and then the Austro-Hungarian Empire which collapsed at the end of World War I. Austria was briefly independent ( First Republic ) till annexation by the German Third Reich, partitioned after the Second World War and then became the independent sovereign state ( Second Republic ) that has existed to the present day.

Having sided with Austria in the Austro-Prussian War for supremacy in Germany, the principality was annexed by Prussia in 1866.

In the Austro-Prussian War of 1866, Nassau took Austria's side.

After the Austro-Prussian War of 1866, victorious Prussia took control over all Schleswig and Holstein but was obliged by the Peace of Prague to hold a referendum in predominantly Danish-speaking Northern Schleswig, which it never did.

However, tensions between the two powers culminated in the Austro-Prussian War of 1866.

Although Franz Joseph ceded no territory to the Kingdom of Prussia after the Austrian defeat in the Austro-Prussian War, the Peace of Prague ( 23 August 1866 ) settled the German question in favor of Prussia, which prevented the unification of Germany under the House of Habsburg ( Großdeutsche Lösung ).

The Standard gained eminence for its detailed foreign news, with its reporting events of the American Civil War ( 1861 – 1865 ), of the Austro-Prussian War of 1866, and of the Franco-Prussian War of 1870, all contributing to a rise in circulation.

In the Austro-Prussian War of 1866, Austria contested with Prussia the position of leadership among the German states.

France saw its dominance on the continent of Europe eroded by Prussia's crushing victory over Austria in the Austro-Prussian War in June – August 1866.

After the Austro-Prussian War in 1866, the Prussian-dominated North German Confederation adopted a tricolour of black-white-red as its flag.

In 1866 Osnabrück was annexed by Prussia after the Austro-Prussian War and administered within the Province of Hanover.

* 1866 – The Grand Army of the Republic, an American patriotic organization composed of Union veterans of the American Civil War, is founded.

* 1866 – Spencer Compton Cavendish, Marquess of Hartington becomes British Secretary of State for War.

The Seven Weeks War between Austria and Germany broke out in June 1866.

However, a campaign to reconquer Peru and Chile during the Chincha Islands War ( 1864 – 1866 ) proved disastrous and Spain suffered defeat before the determined South American powers.

After the end of the American Civil War, he published Battle Pieces and Aspects of the War, ( 1866 ) a collection of over 70 poems that generally was ignored by the critics, though a few gave him patronizingly favorable reviews.

* Battle Pieces and Aspects of the War ( 1866 ) ( poetry collection )

* 1866 – Reconstruction: Tennessee becomes the first U. S. state to be readmitted to the Union following the American Civil War.

Also among his principal works are: History of the Civil War in America ( 1863 – 1866 ), and The History of Frederick II, Called Frederick the Great ( New York, 1871 ).

Landis was born in Millville, Ohio in 1866, his name a spelling variation on the Battle of Kennesaw Mountain in the American Civil War, where his father was wounded in 1864.

It involved competition between France and Prussia over control of Luxembourg, which had become free of German control when the German Confederation was abolished at the end of the Seven Weeks War in 1866.

* The standard history of the state, though only through the Civil War, is Charles Gayarré's History of Louisiana ( various editions, culminating in 1866, 4 vols., with a posthumous and further expanded edition in 1885 ).

Franz Joseph and Bismarck: The Diplomacy of Austria before the War of 1866 ( Harvard University Press, 1934 ).

Meanwhile, also in the summer of 1866, a riot broke out in New Orleans when radicals, with strong opposition from conservatives, sought to re-convene the Louisiana Convention of 1864.

Although strongly urged by moderates in Congress to sign the Civil Rights bill, Johnson broke decisively with them by vetoing it on March 27, 1866.

A treaty was signed at Thaba Busiu in April 1866, but war again broke out in 1867, and the Free State attracted to its side a large number of adventurers from all parts of South Africa.

Although the jubilation at the feat was widespread, the cable itself was short-lived: it broke down three weeks afterward, and was not reconnected until 1866.

On July 30, 1866, while Sheridan was in Texas, a white mob broke up the state constitutional convention in New Orleans.

In 1863 and 1866 insurrections broke out against the Nawab who successfully crushed the rebellions ; but in March 1866, the Nawab died suddenly, not without suspicion of having been poisoned, and was succeeded by his son, Nawab Sadiq Muhammad Khan IV, a boy of four.

When the Cretan revolution of 1866 broke out, Venizelos ' family fled to the island of Syros, due to the participation of his father in the revolution.

Before December 1866, there was no city fire department, and fires in the city, which broke out regularly in the wooden buildings, were extinguished by several volunteer fire companies.

He was director-general of the Guardia Civil ( Civil Guard ) when the military rebellion of June 22, 1866 broke out in Madrid and, after he had been wounded in the leg, he remained at the head of the loyal troops until the insurgents were crushed.

On 9 June 1866 at Danville, Quebec, Canada, a fire broke out in a railway car containing 2000 lb ( 900 kg ) of ammunition, between Quebec and Montreal.

On 9 June 1866, at Danville, Quebec, on the main railway between Montreal and Quebec City, a fire broke out in an car containing 2, 000 lb ( 900 kg ) of ammunition.

After a conference between the two Houses broke down, McCulloch called an election in February 1866, at which his supporters won a large majority in the Assembly.

The war broke out in May 1865, when the Hualapai leader Anasa was killed by a man named Hundertinark in the area of Camp Willow Grove and in March 1866.

He volunteered to crush the insurrection in Madrid on the 22nd of June 1866, and when the revolution broke out in September 1868 accepted the command of Queen Isabella's troops.

The centre of thwe town gained its present appearance in Neo-Gothic style after a large fire broke out on October 7, 1866, which was painted by Alois Beer ( 1833-1897 ).