"As early as the eighties, the reconstruction of the inner harbor began and the city walls on the medieval banks of the Rhine were uncovered. Until then hardly a Duisburger knew this city wall - because industry and trade used it from both sides as completion wall for their buildings. Only the wrecking ball released the wall in the second half of the 80s. It is now - instead of on a wall as it was centuries ago - in a ditch. In 1120, the city wall was created and in a second phase in 12./13. Century completed. Behind the city wall, the first Inner Harbor residential district was built at the end of the eighties. The pointed-gabled roofs of the houses - deliberately towering over the wall - interpret the old forms and adapt to their historical surroundings. Corputiusviertel is the name of this residential quarter, named after the Corputiusplatz at the Museum of Cultural History and the international center of the VHS. On the square are three symbols of Duisburg's three traditional industries: a mining sheave, a harbor crane, and a mold car from the iron and steel industry. On the grounds of today's Corputiusviertel stood the textile factory of the Esch family, who for many decades also owned the neighboring, built in 1536 Dreigiebelhaus. The textile factory building in the Ruhrgebiet became known by the fact that it housed the youth center Eschhaus since the beginning of the seventies. It was created by decision of the city council and was managed autonomously by the young visitors. The 1987 demolition in the course of the inner harbor reorganization was politically fiercely contested.