Industrialization in the United States of America and its society mostly led to the development of a steady industry (obviously) and with this an increased production of goods which enabled the US to become a major power on the world geopolitical scene. Furthermore, it created the working class in the US as a lot of workers were needed in the US that would work in the industry.
Answer:
The Nazis began experimenting with poison gas for the purpose of mass murder in late 1939 with the killing of patients with mental and physical disabilities in the Euthanasia Program.
