How many years ago was there a Jewish community in the territory of today's Germany for the first time?

Explanation

The question refers to the long history of Jewish life in Central Europe. As early as antiquity and the early Middle Ages, Jewish communities settled in various regions that later became part of today's Germany. Historical sources, archaeological finds and written testimonies provide clues as to when these communities were first established. To find the right answer, it is helpful to have a basic knowledge of the development of cities, trade and religious life in European history.