What groups were tattooed by the Nazis?

Slavs, Negroes, Gypsies (considered a plague at the time), Jehovah's Witnesses, Jews, and Socialists or Communists. They were all minorities. Except for organized Christian groups of people who objected to what the government was doing -- like some Catholic groups -- most Christians were left alone, as 90% of the German population was Christian. The Nazis also hated homosexuals and people they considered 'anti-social.' this included alcoholics, the homeless, the unemployed, the lazy, the socially awkward, people with physical or mental disabilities, and the very old and sick in places such as nursing homes -- unless they were war veterans, they were thought to be wasting valuable resources, and so were poisoned or shot to death.

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• Jews
• Roma/Sinti (Gypsies, Romanies)
• Freemasons
• Opponents of the Nazis, including communists, socialists, labor leaders and people who opposed the Nazis on religious grounds
• Gays
• Jehovah's Witnesses
• Various incurables (mental and physical)
• Social 'misfits' (for example, prostitutes and people with no fixed address, beggars, the 'unemployable')
• Really unruly kids, including uncontrollable German kids