1943, Germany was declared judenrein (clean of Jews; also judenfrei: free of Jews). By the end of the war, an estimated 160,000 to 180,000 German Jews had been killed by the Nazi regime and their collaborators. A total of about six million European Jews were murdered under the direction of the Nazis, in the genocide that later came to be known as the Holocaust. After the war, the Jewish community in Germany started to slowly grow again. Beginning around 1990, a spurt of growth was fueled by immigration from the former Soviet Union, so that at the turn of the 21st century, Germany had the only growing Jewish community in Europe, and the majority of German Jews were Russian-speaking. By 2018, the Jewish population of Germany had leveled off at 116,000, not including non-Jewish members of households; the total estimated enlarged population of Jews living in Germany, including non-Jewish household members, was close to 225,000. By German law, denial of the Holocaust or that six million Jews were murdered in the Holocaust (§ 130 StGB) is a criminal act; violations can be punished with up to five years of prison. In 2006, on the occasion of the World Cup held in Germany, the then-Interior Minister of Germany Wolfgang Schäuble, urged vigilance against far-right extremism, saying: "We will not tolerate any form of extremism, xenophobia, or antisemitism." In spite of Germany's measures against these groups and antisemites, a number of incidents have occurred in recent years. From Rome to the Crusades Jewish migration from Roman Italy is considered the most likely source of the first Jews on German territory. While the date of the first settlement of Jews in the regions which the Romans called Germania Superior, Germania Inferior, and Magna Germania is not known, the first authentic document relating to a large and well-organized Jewish community in these regions dates from 321 and refers to Cologne on the Rhine (Jewish immigrants began settling in Rome itself as early as 139 BC). It indicates that the legal status of the Jews there was the same as elsewhere in the Roman Empire. They enjoyed some civil liberties, but were restricted regarding the dissemination of their culture, the keeping of non-Jewish slaves, and the holding of office under the government. Jews were otherwise free to follow any occupation open to indigenous Germans and were engaged in agriculture, trade, industry, and gradually money-lending. These