The simple answer was that the original camps were made for criminals, and for political opponents and the later camps were made for Jews and other 'lesser' people.
The Nazis did not plan to murder all prisoners in camps built before the Holocaust
The Nazis did not plan to murder all prisoners in camps built before the Holocaust
The Nazis did not plan to murder all prisoners in camps built before the Holocaust
The Nazis did not plan to murder all prisoners in camps built before the Holocaust
Zombie Holocaust was created in 1979.
Final Holocaust was created in 1990.
Toxic Holocaust was created in 1999.
Encyclopedia of the Holocaust was created in 1990.
Armageddon Holocaust was created in 1999.
Paroxysmal Holocaust was created in 1989.
The Holocaust Industry was created in 2000.
The Holocaust Experience was created in 2003.