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Aktion T4 and the Final Solution

Aktion T4 program and its connection to the Final Solution, including the development of methods and technologies used for mass murder.

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Jan 18, 2026
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How did it escalate from T4 to the final solution in Nazi Germany?

Aktion T4 began in 1939 as a state-directed "euthanasia" program to eliminate people judged "life unworthy of life," and it became both an ideological laboratory and a technical proving ground whose m...