When Hitler assumed power in 1933, he and other Nazis had firm ideas on what they called a racially pure "community of the people." They quickly took steps against those whom they wanted to isolate, deport, or destroy. In these essays informed by the latest research, leading scholars offer rich histories of the people branded as "social outsiders" in Nazi Germany: Communists, Jews, "Gypsies," foreign workers, prostitutes, criminals, homosexuals, and the homeless, unemployed, and chronically ill. Although many works have concentrated exclusively on the relationship between Jews and the...

In February 1943 the Gestapo arrested approximately 10,000 Jews remaining in Berlin. Most died at Auschwitz. Two thousand of those Jews, however, had non-Jewish partners and were locked into a collection center on a street called Rosenstrasse. As news of the surprise arrest pulsed through the city, hundreds of Gentile spouses, mostly women, hurried to the Rosenstrasse in protest. A chant broke out: "Give us our husbands back."

Over the course of a week protesters vied with the Gestapo for control of the street. Now and again armed SS guards sent the women scrambling for cover...