A commemoration committee is asking thousands of Amsterdam homeowners to mark their houses if a former Jewish resident was arrested or deported to Nazi death camps during World War II.

The May 4-5 Committee, named for the date of the Netherlands' liberation from German occupation in 1945, made posters available Friday for display in windows of the former Jewish homes. The poster reads: "1 of the 21,662 houses where Jews lived who were murdered in World War II."

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