On November 9-10, 1938, Kristallnacht, a nation-wide pogrom, devastated the Jewish community of Germany. Following this, the British government changed their immigration policies, allowing children under the age of 17 from Germany and German-annexed territories to resettle in Britain. This began an organized effort to relocate Jewish children, which became known as the Kindertransport (Children's Transport). The Kindertransport operated from 1938-1940 and rescued 9,000-10,000 children during that time.