On April 12, 1933, the German government announced plans to conduct a long-delayed national census. The project was particularly important to the Nazis as a mechanism for the identification of Jews, Gypsies, and other ethnic groups deemed undesirable by the regime. Dehomag offered to assist the German government in its task of ethnic identification, focusing upon the 41 million residents of Prussia. This activity was not only countenanced by Thomas Watson and IBM in America, Black argues, but was actively encouraged and financially supported, with Watson himself traveling to Germany in October 1933 and the company ramping up its investment in its German subsidiary from 400,000 to 7,000,000 Reichsmark—about $1 million. This injection of American capital allowed Dehomag to purchase land in Berlin and to construct IBM's first factory in Germany, Black charges, thereby "tooling up for what it correctly saw as a massive financial relationship with the Hitler regime". Black also asserts that a "secret deal" was made between Heidinger and Watson during the latter's visit to Germany which allowed Dehomag commercial powers outside of Germany, enabling the "now Nazified" company to "circumvent and supplant" various national subsidiaries and licensees by "soliciting and delivering punch card solution technology directly to IBM customers in those territories". As a result, Nazi Germany soon became the second most important customer of IBM after the lucrative U.S. market. The 1933 census, with design help and tabulation services provided by IBM through its German subsidiary, proved to be pivotal to the Nazis in their efforts to identify, isolate, and ultimately destroy the country's Jewish minority. Machine-tabulated census data greatly expanded the estimated number of Jews in Germany by identifying individuals with only one or a few Jewish ancestors. Previous estimates of 400,000 to 600,000 were abandoned for a new estimate of 2 million Jews in the nation of 65 million. As the Nazi war machine occupied successive nations of Europe, capitulation was followed by a census of the population of each subjugated nation, with an eye to the identification and isolation of Jews and Romani. These census operations were intimately intertwined with technology and cards supplied by IBM's German and new Polish subsidiaries, which were awarded specific sales territories in Poland by decision of the New York office following Germany's successful Blitzkrieg invasion. Data generated by means of counting and alphabetization equipment supplied by IBM through its German and other national subsidiaries was instrumental in the efforts of the German government to concentrate and ultimately destroy ethnic Jewish populations across Europe.