Maps and demographics of Jews in history
Many classic research was done in the presence of Jews in different areas. In the overview below one can find mapsand demographic reports that assist to understand how many Jewish people were in different areas over time.
For more ideas on the knowledge on the number of Jews over time, see The Chosen Few by Zvi Eckstein and Maristella Botticini
References are only made to the best measurements of number of people or number of Synagogues.