 In the last two years of the First World War, Hannah's mother organized social democratic discussion groups and became a follower of Rosa Luxemburg (1871–1919) as socialist uprisings broke out across Germany.Luxemburg's writings would later influence Hannah's political thinking.In 1920, Martha Cohn married Martin Beerwald (1869–1941), an ironmonger and widower of four years, and they moved to his home, two blocks away, at Busoldstrasse 6, providing Hannah with improved social and financial security.