Answer: The Correct answer should be about 4000 years ago! Sorry if it’s wrong
Explanation:
The main reason why the United States involved itself in a civil dispute on the Korean peninsula in the 1950s was "<span>to exercise the policy of containment," since they were attempting to stop the spread of communism. </span>
<span>Railroads took the lead in new patterns of business organization and management in the late 19th century because these infrastructures provided a system of mass transportation for people and goods. Access to cities across the United States became much easier during that time.</span>
It led to drastic inflation of prices in the 1970's
the increases in prices led to an increased level of public anxiety. there was widespread discontent in the USA. The problem was made worse by increased oil prices resulting from wars in the middle east. It also sedimented American uproar against the Vietnam war.
