"This approach appears to have been used in the Netherlands when small-area tabulations of population data by religion from the 1930 Dutch census made up one of several data sources used in the development of the so-called 'dot maps' of Amsterdam," he says. "These maps, which showed areas of the city where the density of the Jewish population was the highest, were used in planning Nazi-inspired attacks on some of these neighborhoods in February 1941."
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"This approach appears to have been used in the Netherlands when small-area tabulations of population data by religion from the 1930 Dutch census made up one of several data sources used in the development of the so-called 'dot maps' of Amsterdam," he says. "These maps, which showed areas of the city where the density of the Jewish population was the highest, were used in planning Nazi-inspired attacks on some of these neighborhoods in February 1941."