Answer:
cooperation and collaboration
Answer: 1492
Explanation: The Christian Kingdoms of Castile and Aragon conquer the Emirate of Granada, ending nearly 800 years of Muslim rule in the south and founding modern Spain as a united state.
Answer:
The connection between steel and the railroad system is the railroad system couldn't exist without steel. That's why things like the Bessemer process where invented because steel needed to be produced fast.
Explanation:
Shortly before the Civil War, Rockefeller and a partner established a shipping company in Cleveland, Ohio. The company made so much money during the war. In 1863, he and his partner invested in another business that refined crude oil from Pennsylvania into kerosene for illuminating lamps.
