BERLIN, Oct. 23 (Xinhua) -- The creator of the "stumbling stones" Holocaust memorial project, Gunter Demnig, laid the 70,000th brass stone into the ground in Germany's Frankfurt on Tuesday, local media reported.

The small brass plaques, known as stumbling stones, have been installed in pavements in Germany and other countries to commemorate the victims of Nazi Holocaust, as each plaque engraved with the name and fate of an individual.

The stumbling stones were embedded in the sidewalk in front of the last freely chosen place of residence of individual victims.

The 70,000th stone bore the name of Willy Zimmerer, a man with disability who was murdered in 1944 near Frankfurt, according to the German broadcaster Deutsche Welle.

Two of Zimmerer's distant relatives have traveled from the United States to witness the stone being placed into the ground.

Gunter Demnig began the "stumbling stones" project in 1992.