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."
Reservations led by senator Henry Cabot Lodge of Massachusetts wanted reservations amendments added to the treaty before approving it. The senate voted on the treaty with and without the reservations. They both voted for fell short of the required two thirds of majority. The senate committee on the foreign relations vote tally on the lodge amendment treaty of Versailles. When the senate committee on foreign relations began adding senator Henry Cabot lodged amendments to the treaty.
The plains tribes did live in pueblos for protection
Zheng forced the rulers of defeated states to move to his capital, Xinyang, to ensure that they were not plotting rebellion is your answer .-.