The cotton gin was an important invention because b) it inadvertently led to the spread of slavery. This was because the demand for cotton grew even more, due to the cotton gin being produced in masses. The cotton gin is "a machine that quickly and easily separates cotton fibers from their seeds, allowing for much greater productivity than manual cotton separation."
<span>What were the major milestones in rights for African-Americans during the 19th century?
a. the decision in Dred Scott v. stanford
b. the decision in Plessy v. Ferguson
c. the passage of the Thirteenth, fourteentg, and fifteenth amendments
d. the abolishment of Jim crow laws
[The answer is C}</span>
A major reason for Japan's policy in Asia was to obtain natural resources.