Editing Brandenburg an der Havel (section)

===Modern history===
[[File:Hauptstraße in Brandenburg an der Havel 2015.JPG|thumb|right|Brandenburg an der Havel old town in 2015]]
In the late 19th century Brandenburg an der Havel became a very important industrial center in the German Empire. Steel industries settled there, and several bicycle brands such as ''[[Brennabor]]'', ''Corona'' and ''Excelsior'' were manufactured in the city. A toy industry was also established. A giant industrial complex, the [[Deutsche Reichsbahn]] (German Imperial Railways) was located in Brandenburg-Kirchmöser between the two world wars and under the former [[East Germany|GDR]].

In 1933/34, a [[Nazi concentration camps|concentration camp]], one of the first in [[Nazi Germany]], was located on ''Neuendorfer Straße'' in Brandenburg Old Town. After closing this inner city concentration camp, the Nazis used the [[Brandenburg-Görden Prison]], located in the suburb of Görden. Later the old gaol became the [[Brandenburg Euthanasia Centre]] where the Nazis murdered people with mental diseases, including children. This programme later came to be known as "[[Action T4]]" because of the Berlin address, Tiergartenstraße 4, the headquarters of this planned and well-organized [[forced euthanasia]] organisation. Brandenburg an der Havel was one of the first locations in Nazi Germany where the [[Nazi]]s experimented with murdering their victims [[gas chamber|by gas]].{{fact|date=March 2023}} The lessons here were later applied for mass murders in [[Auschwitz]] and other [[extermination camp]]s. 

In 1934, the Arado [[Aircraft]] Company ([[Arado Flugzeugwerke]]), which originated in [[Warnemünde]], built a [[satellite]] factory in Brandenburg that began producing planes in 1935. The factory was expanded over the next five years, and produced trainers and other aircraft for the [[Luftwaffe]] during World War II. The existence of this factory was one of the reasons Brandenburg was heavily bombed in later stages of the war; by 1945, 70% of the city was destroyed.

[[Friedrich Fromm]], a German officer involved in the [[20 July plot]] to assassinate [[Adolf Hitler]], was executed here in March 1945 for his part in the plot, even though Fromm betrayed those conspirators he knew and ordered their execution.

On 25 July 1952 [[Plaue, Brandenburg|Plaue]] and [[Kirchmöser]] were incorporated in the city of Brandenburg an der Havel.<ref>Gemeinden 1994 und ihre Veränderungen seit 01.01.1948 in den neuen Ländern, Verlag Metzler-Poeschel, Stuttgart 1995, {{ISBN|3-8246-0321-7}}, Hrsg.: Statistisches Bundesamt</ref>

After [[German reunification]] the city's population declined from around 100,000 in 1989 to roughly 75,000 in 2005 through emigration. The migration was mainly by young people.