The Romans were able to make fountains jet water into the air, by using the pressure of water flowing from a distant and higher source of water to create hydraulic head, or force.
Explanation:
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Answer: Brazil was the last country in the Western world to abolish slavery. By the time it was abolished, on May 13, 1888, an estimated four million slaves had been imported/taken from Africa to Brazil, 40% of the total number of slaves brought to the Americas.