The Holocaust began in 1941 and lasted till 1945. Please see the related question below.
There was no 'official event' and the Holocaust began in different places at different times in 1941. There was no official announcement of the kind implied in the question. What's more, there is even disagreement as to when the Holocaust began.
The US fought in World War 2 from 1941-1945, but that is not the same thing as the Holocaust. Please see the related question.
The United States did not know about it in 1941
1941-1945
No. The Holocaust took place in Europe between 1941 and 1945.
1941-1945 is a good guide.
Yes, the Nuremberg Laws date from 1935. The Holocaust began in 1941.
The Holocaust happened mostly in Poland from 1941-1945, during WWII
the holocaust lasted from 1941-1944 so 2-3 years depending on what month
The Holocaust occurred during World War II, starting in 1941 and lasting until 1945.
In 1919-1933 there was no German holocaust of the Jews. It began in 1941. Please see the related questions.
Holocaust started 1941 and ended 1945, when Germany surrendered.