Answer:
The answer is the invention of the cotton gin.
Explanation:
In 1794, U.S.-born inventor Eli Whitney (1765-1825) patented the cotton gin, a machine that revolutionized the production of cotton by greatly speeding up the process of removing seeds from cotton fiber. By the mid-19th century, cotton had become America’s leading export. Despite its success, the gin made little money for Whitney due to patent-infringement issues.
One inadvertent result of the cotton gin’s success, however, was that it helped strengthen slavery in the South. Although the cotton gin made cotton processing less labor-intensive, it helped planters earn greater profits, prompting them to grow larger crops, which in turn required more people.
I’m not sure, but this should help you a little bit.
“The Immigration and Nationality Services of Act of 1965 was a turning point in United States policy regarding immigration. While changing previous legislation that functioned on a rigid quota system, the Act of 1965 gave preference to refugees and families, removed quotas from countries in the Western Hemisphere, and based entry to the United States on levels of skill. In forty years since, the foreign-born population of the United States has tripled in number, now prompting new legislative debate.”
The answer is: Greeks and Roman's.
I believe it's C. Skilled Labor.
