He spelled it out in 1925 and 1926 in Mein Kampf, his two volume book meaning "My Struggle."
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In fact, the passage generally quoted does not call for genocide and is not a plan or even the start of a plan. Most historians now think the Holocaust was planned in 1941, probably in September-October.
Please see the related question below.
See also Christopher Browning, The Origins of the Holocaust ...
Adolph Hitler dreamed up the holocaust. Hitler planned the holocaust. Hitler supervised the holocaust.
Neither, the Holocaust took place under Hitler's administration.
The Holocaust took place in all territory under German control. It didn't start in one place and then "spread" in the way the question seems to suggest.
Hitler was the sole ruler of Germany during the Holocaust.
Adolf Hitler was behind the atrocities of the Holocaust.
yes Hitler did
Hitler and other Nazis decided to start up the Holocaust.
No.
Adolph Hitler dreamed up the holocaust. Hitler planned the holocaust. Hitler supervised the holocaust.
He was the Chancellor and leader of Germany and the one who masterminded the Holocaust. Hitler cannot be considered a mastermind, it was done in his name, but the overseeing was done by Himmler and the actual planning was done by people like Eichmann and Heydrich.
Hitler was NOT right in conducting the Holocaust.
Hitler started the holocaust because he is a crazy leader with a vicious vision that turned out to be a nightmare that lasted for ages.
Hitler didn't just affect the Holocaust, he was the Holocaust.
The entire Nazi leadership was responsible. Most of the detailed planning was handled by Himmler and Heydrich.
For a start it is HOLOCAUST not HOLOCAUSE and it was Adolf Hitler who created it. He named it 'the final soloution'
Started to invade countries and starting the "Holocaust".
Neither, the Holocaust took place under Hitler's administration.