Editing Hagen (section)

=== 19th and early 20th Century ===
After the defeat of Prussia in the [[Fourth Coalition]], Hagen was incorporated into the [[Grand Duchy of Berg]] founded by [[First French Empire|France]] from 1807 to 1813. It became part of the new [[Province of Westphalia|Prussian province of Westphalia]] after the [[Congress of Vienna]] in 1815.

From 1817, Hagen was the seat of an office and a district within the administrative district of Arnsberg. In 1837, the revised town regulations and a magistrate were introduced. 

In the course of industrialisation, Hagen was connected to the network of the [[Bergisch-Markisch Railway Company|Bergisch-Märkische Eisenbahngesellschaft]] in 1848 and developed into an important railway junction.

By 1865, Hagen had overtaken Iserlohn, which had previously been the leading town in South Westphalia in terms of population and economic power.
[[File:1912 Hagen Mittelstraße.jpg|thumb|Mittelstraße, 1912]]
During the [[German Empire]] from 1871 to 1914, Hagen experienced a period of prosperity. Through urbanisation and industrialisation of the 19th century, the city developed into the main centre for the entire region south of the river [[Ruhr (river)|Ruhr]]. In 1887, Hagen was administratively separated from the district of Hagen and became an independent city ([[urban districts of Germany|urban district]]).

In the years following the turn of the century, the banker and patron Karl Ernst Osthaus brought many later important architects to the city, including [[Henry van de Velde]], [[Peter Behrens]] and [[Walter Gropius]]. They established Hagen's reputation as a link between [[Art Nouveau]] and [[Modern architecture|Modernism]] ({{Lang|de|Hagener Impul}}). The centrepiece of this initiative was the [[Museum Folkwang|Folkwang Museum]] and the (only partially built) garden city of Hohenhagen ({{Lang|de|Gartenstadt Hohenhagen}}).

[[File:Hagen Rembergfriedhof Märzgefallene.JPG|thumb|Memorial to the Ruhr Uprising, Hagen]]
In reaction to the [[Kapp Putsch]] in March 1920, when rightists tried to overthrow the elected government and set up an authoritarian regime,<ref>{{cite journal |author=Rainer Hering |year=2005 |title=Review: Der Kapp-Lüttwitz-Ludendorff-Putsch. Dokumente by Erwin Könnemann, Gerhard Schulz |journal=German Studies Review |language=de |volume=28 |pages=431–432 |number=2}}</ref> tens of thousands of leftist workers in the Ruhr Valley, Germany's most important industrial area, used the opportunity for a revolutionary uprising from the Left. In the [[Ruhr uprising]] of 13 March&nbsp;&ndash; 2 April 1920, the 50,000-man [[Ruhr Red Army]] took control of the industrial district. Government and paramilitary forces were ordered against the workers, suppressing the uprising, and killing an estimated 1,000 workers.<ref>{{Cite web |last=Anja |first=Wulfert |date=22 January 2002 |title=Der Märzaufstand 1920 |trans-title=The March Uprising 1920 |url=https://www.dhm.de/lemo/kapitel/weimarer-republik/innenpolitik/maerzaufstand-1920.html |access-date=3 April 2024 |website=Deutsches Historisches Museum |language=de}}</ref> A memorial to the uprising was installed in Hagen.

By 1928, Hagen had developed into a city of more than 100,000 inhabitants.{{citation needed|date=December 2016}}