The first group of Jews in the area were the Ashkenazim Jews, who settled on the Rhine river in western Germany.

Jewish Virtual Library

The First crusade destroyed the Jewish/German cities of Trier, Worms, Mainz and Cologne. Forced Jews to migrate and settle in East-Poland
The Rhineland Massacres were one of the first instances of violent anti-semitism.

Jewish Virtual Library

Nuremberg Laws - Sep 15, 1935
Jews no longer considered German citizens
No longer allowed to mary Aryan’s.
Could not fly the german flag.
Defined Jews as: Someone with 3 jewish grandparents or 2 jewish grandparents and identify as a jews.

Holocaust Museum Learning Center
BBC

Jews were...
Banned from veterinary profession
Barred from practicing medicine
Teachers could no longer teach
Couldn’t be tax consultants
Banned jews from being auctioneers
All jewish businesses had to be marked

Jews were banned from health spas
All jewish businesses were closed
All jewish contracts were canceled
Banned from being midwife’s

British Library Board
Holocaust Museum Learning Center

By 1939, all Jews who lived within the German borders were forced to wear this star.

World War 2 officially begins and Jews begin to be forced into labor camps.

Mass murder of Jews begins at Auschwitz.
There were a few ways in which Jews were buried by the Nazi's. There were mass graves where they were just stacked on top of one another but they also cremated them.

Scrapbookpages.com
(Image)

Estimates vary wildly due to exaggerated numbers reported by german officials but it can be estimated between 1.5 and 6 million Jews died within german borders between 1939 and 1945. Germany surrendered May 8th 1945.

The Jewish Population of Germany 1939-1945
Bruno Blau