In 1815 after the Napoleonic Wars, the Kingdom of Prussia took over and the city became one of its most socially and politically backward centres until the end of the 19th century.

The city became part of the First French Empire in 1806 as Principality of Erfurt, and was returned to Prussia in 1815 after the Napoleonic Wars.

Landau was later occupied by the French from 1680 to 1815, when it was one of the Décapole, the ten free cities of Alsace, and received its modern fortifications by Louis XIV's military architect Vauban in 1688 – 99, making the little city ( population in 1789 was still only approximately 5, 000 ) one of Europe's strongest citadels.

Consequently Artigas broke with Buenos Aires and besieged Montevideo, taking the city in early 1815.

At the Congress of Vienna in 1814 and 1815, the left-bank Palatinate — enlarged by other territories such as the former Bishopric of Speyer and the free imperial city of Speyer — was returned to the Wittelsbachs and became a formal part of the Kingdom of Bavaria in 1816 in exchange for Tirol, which Bavaria ceded to Austria.

The Congress of Vienna in 1815 saw the kingdoms of Naples and Sicily combined to form the Two Sicilies, with Naples as the capital city.

Between 1815 and 1945 the city of Potsdam served as capital of the governorate of Potsdam ().

A popular feast is reported to have been held in the city of Damavand on 7 Šawwāl 1230 / 31 August 1815, during which the people celebrated the anniversary of Zahhaks death.

After a five-month siege the fortified city fell on December 1815.

Regarding the frame of government the 1815 constitution did not diverge much from the situation during the Republic: the 110 members of House of Representatives ( lower house ) of the States-General were still appointed by the States-Provincial ( for three years ; each year a third was replaced ), who themselves were filled with nobility members or appointed by the city councils, just like under the ancien régime.

Since 1815, the city belonged to the Russian-controlled Congress Poland.

Columbus and Franklin County grew quickly in population, with the city having 700 people by 1815.

The creek also formed a portion of the now-filled Washington City Canal, which allowed passage through the city to the Anacostia River from 1815 until the 1850s.

Lebanon, the county seat, was incorporated as a city on January 28, 1815, and because of its superior style and beauty, elegant homes and flourishing businesses, it had the reputation of being Kentucky's Philadelphia and was considered for the site of the state capitol.

The town once included the city of Fall River ( 1659 – 1803 ), and a portion of Acushnet ( 1659 – 1815 ).

( Auburn was incorporated as a village in 1815 and received a city charter in 1848 ; the west line of the city abuts the Town of Aurelius.

Portsmouth was founded in 1803 and was established as a city in 1815.

Kutztown was incorporated as a borough on April 7, 1815, and is the second oldest borough in Berks County after Reading, which became a borough in 1783 and became a city in 1847.

In 1809 the city was incorporated to the Napoleonic Duchy of Warsaw whereas after the fall of Napoleon, following the decisions taken during the Congress of Vienna in 1815, Zamość became a part of the Kingdom of Poland, also called Congress Poland, which was controlled by the Russian Empire.

The current position of Amsterdam as capital city of the Kingdom of the Netherlands is governed by the constitution of 24 August 1815 and its successors.

The city ’ s fortunes rose again after the Battle of Waterloo ( 1815 ).

In 1815, after temporarily belonging to the Grand Duchy of Berg, the land now comprising the city of Gelsenkirchen passed to the Kingdom of Prussia, which assigned it to the province of Westphalia.

He used his influence to secure amnesty for Jean Lafitte and his followers upon their offer to fight for the city, and in 1814 — 1815 acted as adviser and volunteer aide-de-camp to General Andrew Jackson, who was his personal friend.

In the century from 1815 to 1914 the law of nations became international law.

In 1815 following the Napoleonic Wars, Bonn became part of the Kingdom of Prussia.

The Habsburgs eventually secured them ( by 1815 ) and Dalmatia and Istria became part of the empire, though they were in Cisleithania while Croatia and Slavonia were under Hungary.

* David Edward Brewster ( 17 August 1815 –) became a military officer ( Lieutenant Colonel ) serving in India.

After the affair between David and Katrine became known, David Longfield's father ( Beatty's grandfather ), David Vandeleur Beatty ( 1815 – 1881 ), arranged for his son to be posted to India in the hope that the scandalous relationship might end.

The Vienna Congress of 1815 confirmed Hamburg's independence and it became one of 39 sovereign states of the German Confederation ( 1815 – 66 ).

After Russia and its allies defeated Napoleon, Alexander became known as the ' savior of Europe ,' and he presided over the redrawing of the map of Europe at the Congress of Vienna ( 1815 ), which made Alexander the monarch of Congress Poland.

The position was exacerbated by the failure of the islands ' kelp industry that thrived from the 18th century until the end of the Napoleonic Wars in 1815 and large scale emigration became endemic.

By 1815, Britain became the principal power in the Indian Ocean.

Kolberg became part of the Prussian province of Pomerania in 1815, after the final defeat of Napoleon ; until 1872, it was administered within the Fürstenthum District (" Principality District ", recalling the area's former special status ), then it was within Landkreis Kolberg-Körlin.

Use of the term " Left " became more prominent after the restoration of the French monarchy in 1815 when it was applied to the " Independents ".

During the Napoleonic Wars ( 1800 – 1815 ), Malta's economy prospered and became the focal point of a major trading system.

After the Napoleonic era, Maastricht became part of the United Kingdom of the Netherlands in 1815.

In 1815 following the Napoleonic Wars, the town became part of the Prussian Province of Saxony.

Born into a family of doctors and professors of medicine in Würzburg ( then in the Bishopric of Würzburg ), von Siebold initially studied medicine at University of Würzburg from November 1815, where he became a member of the Corps Moenania Würzburg.

However in 1815, following the Congress of Vienna, the region was returned to Prussia, and Poznań became the capital of the semi-autonomous Grand Duchy of Posen.

Sri Lankan dynastic history spanned a period of 2359 years, from 543 BC to AD 1815, until the land became part of the British Empire.

In 1815, after the Napoleonic Wars, it became part of the Prussian Province of Saxony.

The states of Mecklenburg-Schwerin and Grand Duchy of Mecklenburg-Strelitz became Grand Duchies in 1815.

Pomerania then became a province of Prussia in 1815.