Warsaw – Polish President Bronislaw Komorowski and German counterpart Christian Wulff laid a wreath Tuesday at the Warsaw Ghetto monument to mark the 40th anniversary of the historic gesture by Chancellor Willy Brandt seeking forgiveness for Nazi crimes.’We must pass this on from generation to generation,’ Wulff said of Brandt’s gesture in 1970, during which he spontaneously knelt in front of the monument. ‘I think that was a great human gesture.’Wulff said that although he was born after the end of the war, he nevertheless feels a responsibility for German history.Some 400,000 Polish Jews were rounded up by Nazis in 1940 and forced to live in the Warsaw Ghetto. Some 100,000 died of starvation or disease, while most others were later taken to Nazi extermination camps.Komorowski said that Poles in 1970 had negative stereotypes of Germans because of the dramatic events of World War II. Komorowski said that Brandt’s visit made Poles have a more ‘multidimensional picture’ of their German neighbours, and showed Poles that not all Germans were the same.