Hagen was first mentioned ca. 1200, presumably the name of a farm at the junctions of the Volme and the Ennepe. After the conquest of Burg Volmarstein in 1324, Hagen passed to the County of Mark. In 1614 it was awarded to the Margraviate of Brandenburg according to the Treaty of Xanten. In 1701 it became part of the Kingdom of Prussia.
The growth of the city began in the 19th century with the mining of coal and the production of steel in the Ruhr Area. It was the scene of fighting during the Ruhr Uprising, 13 March - 2 April 1920 and has a monument to the Ruhr Red Army.
In 1928 Hagen became a city with more than 100,000 inhabitants.
On the night of 1 October 1943 243 Lancasters and 8 Mosquitos from the Royal Air Force's Bomber Command attacked the city. According to the Bomber Command Campaign Diary, "This raid was a complete success achieved on a completely cloud-covered target of small size, with only a moderate bomber effort and at trifling cost." Severe damage was caused.
Owing to the extensive use of water power along the rivers Ruhr, Lenne, Volme and Ennepe, metal processing played an important role in the region of Hagen in and even before the 15th century.
Hagen is the home of the Suedwestfaelische Industrie- und Handelskammer.(Haris Hodža )
Hagen is home to the Westfälisches Freilichtmuseum Hagen, or Hagen Westphalian Open-Air Museum, a collection of historic industrial facilities where trades such as printing, brewing, smithing, milling, and many others are represented not simply as static displays, but as living, working operations that visitors may in some cases even be invited to participate in. It is located in the Hagen community of Eilpe. The Historical Center contains the Museum of the City and the Werdringen castle. In the Blätterhöhle cave in Hagen the oldest fossils of modern people in Westphalia and the Ruhr were found. They are dated to the early Mesolithic, 10,700 years B.C.
some localities of Hagen:
Hagen has been an important rail junction for the southeastern Ruhr valley since the first rail line opened in 1848. The shunting yard Hagen-Vorhalle is among Germany's largest, and the central station offers connections to the ICE network of Deutsche Bahn as well as to local and S-Bahn services. Since December 2005, Hagen is also the starting point for a new service into Essen, operated by Abellio Rail.
Local traffic is handled by Hagener Straßenbahn (Hagen Tramways), which, despite its name, offers only bus services as the last tramway in Hagen was put out of service in the 1970s. All local rail and bus services operate under the transport association VRR.
The German Basketball Federation (DBB) is based in Hagen
Sport clubs in Hagen:
Hagen has been twinned with these towns: