Answer:
A. Architecture was made possible for the first time in American civilizations
Explanation:
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Ancient Romans built for their military
Answer: <em>Petroleum.</em>
Explanation: John D. Rockefeller built his first refinery in 1870. He had a monopoly of oil in the oil industry of the U.S.
He became rich buying the companies of his rivals and creating companies to sell his products in the world. In 1882 he had the control of 90% of the refineries of the country. He was considered a Captain of Industry, for making so much money and for become a philanthropist, that donated a lot of money.
Answer: slavery spread over the eastern two-fifths of Texas by 1860 but flourished most vigorously along the rivers that provided rich soil and relatively inexpensive transportation.
Explanation:
Sonni Ali Ber.
He conquered Mali and Timbuktu. His successor was Askia Muhammad Toure whom was more famous than Ber.
