Duisburg celebrated its 1100th anniversary in 1983 . The city 's population recovered a little in the following years , up to 537,000 in 1992 . It declined to 488,000 in 2011 . On 19 July 2004 , it was hit by a tornado . The municipal theater and parts of the city center were damaged . The city hosted the 7th World Games in 2005 . In 2010 , 21 people died because of a mass panic at the Love Parade ; over 500 people were injured
Love Parade
Love Parade disaster
Duisburg