Answer:
the violence in a revolution
Explanation:
translated to English
Actually the real answer is the second and first world war pouring money into the us economy for output. If that is not an option it would be the invention of the steam engine and the 1800's locomotive industry.
William Tweed was the leader of Tammany hall who grew rich through corruption but did little to solve any of New York's problems.
Answer: He promoted public health by advocating clean environment and stressing the importance of personal and military hygiene. His study of mental disorder made him one of the founders of American psychiatry. In 1965 the American Psychiatric Association recognized Rush as the "father of American psychiatry".
Explanation: