Answer: Men stopped wearing hats. He initiated the moon landing project which did stimulate not only the economy but innovation and commercial applications for discoveries and consequently the economy. His election as a Catholic was an historic glass breaker. The Cuban missile crisis showed the U S would not be intimidated. One of his most quoted statements was "ask not what your country can do for you ask what you can do for your country." We could use someone like that now. We don't have it.
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