The monument was unveiled on April 18, 1988, on the eve of the 45th anniversary of the outbreak of the Ghetto Uprising. It was designed by Hanna Szmalenenberg and Władysław Klamerus. The monument has a form of a white four-metre wall with a black strip on the front wall, which is a reference to the colours of the Jewish ritual robes. The space surrounded by the wall, on a rectangular plan of 20 × 6 metres, symbolizes an open railway wagon. 400 most popular Polish and Jewish names were engraved on the inner wall of the monument in alphabetical order, from Aba to Żanna. The names highlight several hundred years of coexistence of the two nations in Warsaw and the overlapping of their cultures and religions. Each name also symbolically commemorates a thousand victims of the Warsaw Ghetto. In the central part of the wall there are four stone boards with inscriptions in Polish, Yiddish, English and Hebrew that read as follows: