What is significant about the fact that the Holocaust took place over a 12-year time period?

The 12 year period signifies the prosecution and murder of Jews by the Nazis regime and it's collaborators between the year 1933 to 1945.

Explanation:

Most Holocaust historians called the  Holocaust as the genocide  carried out  on European Jews by Nazi Germany and its perpetrators from the year 1941 and 1945.

According to Michael Gray who is a specialist in Holocaust Education, he acknowledges three significant of the Holocaust that took place over a 12 year period

c 3 branches because idk why they had 3 well when:

you think of it there are still contrys with 3