Because of the invention of the__cotton became the foundation of the southern economy.

The cotton gin

Explanation:

When Eli Whitney invented the cotton gin it provided a quicker method when it came to picking the seeds out of cotton. The faster the seeds could be picked out the more the plantation owners wanted a faster way to pick cotton.

- "schenck v. united states, case in which the u.s. supreme court ruled on march 3, 1919, that the freedom of speech protection afforded in the u.s. constitution's first amendment could be restricted if the words spoken or printed represented to society a “clear and present danger.” "

- speech aimed to potentially create danger could be banned.

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most people now work in jobs where they do one  kind  of work; they are carpenters, bankers, cooks, mechanics, and so forth. likewise, most  businesses produce  only certainkinds  of  goods  or  services, such as cars, tacos, or gardening  services. this feature of  production  is known as specialization.