[3] In the 20th century, the city's economy was built on machine-building, leather-making, typography and design, and the automobile and pharmaceutical industries.

[4] In a document of the Holy Roman Emperor Otto II dating to 977 exists the first mention of the place of Offenbach.

It remained in that principality until 1815, when the Congress of Vienna gave the city to the Austrian Emperor, Francis I.

The town has its own trade fair, and many companies have opened facilities here because there are fewer restrictions and no closed businesses.

The town was more cosmopolitan than Frankfurt; famous people such as Goethe and Mozart visited it several times.

Offenbach is a so-called "Sozialer Brennpunkt" (deprived area) because of unemployment, poverty, gang related crime and migration.

In 2010 the eastern part of the city center was officially named Mathildenviertel, as the area was already unofficially called by the locals.

The current mayor of Offenbach is Felix Schwenke of the Social Democratic Party (SPD).

[14] Nearly one-in-three, 29.5%, of foreign residents originate from Europe, particularly from countries like Romania, Greece, Bulgaria, Poland, Croatia and Italy.

[14] According to census data, Offenbach[15] and Duisburg had the highest share of Muslim migrants of all German districts in 2011.

With the coming into power of the count Johann Philipp in 1685, the city began to develop and the population rose steadily.

[citation needed] The city hosts the German Association for Electrical, Electronic and Information Technologies to this day.

Klingspor and Linotype (inventors of Optima or Palatino typeface) moving to nearby Eschborn in the 1970s and MAN Roland printing machines still a major employer today.

In recent years Offenbach has become a popular location for a wide array of services, especially from the transport sectors.

Offenbach is the host to the European headquarters of Honda,[24][failed verification] Hyundai Motors[25] and Kumho Tires.

Between the shopping area and the Main, is the Lilipark and the Lilitemple, named after Johann Wolfgang von Goethe's fiancée Lili Schönemann.

In general, six stations are located in Offenbach: Offenbach-Kaiserlei, Offenbach-Ledermuseum, Offenbach-Marktplatz, Offenbach-Ost, Offenbach-Bieber, Offenbach-Waldhof.

An often-addressed problem is that there is no direct interchange between regional and suburban trains in Offenbach, since the lines were separated when the tunnel was built.

Therefore, residents and city officials have proposed several times that platforms for regional trains should be added to the Offenbach-Ost Station.

The city's municipal public transportation services are operated by the "Offenbacher Verkehrsbetriebe" (OVB) and its subcontractors.

Mostly hourly service for Wächsersbach, Fulda, Würzburg and Erbach call at the Offenbach Central Station.

The station lost most of its importance when the suburban trains were re-routed through the newly build tunnel beneath Berliner Straße.

The airport can be reached by car or bus and has two train stations, one for regional and one for long-distance traffic.