The correct answer to this open question is the following.
Although there are no options attached or further references, we can say the following.
The industry that first led to a breakthrough for the Cincinnati Mill Company was the new technology machine-building industry in the United States.
Located in Cincinnati, Ohio, the Cincinnati Milling Machine Company was the first industrial company to fabricate milling machines to cut surfaces removing unnecessary materials. Two innovative businessmen and industrial people were at the forefront of this company: Fred Holtz and Frederick A. Geier, who opened the fabric in 1889.
Answer:
Between 1946 and 1991 the United States, the Soviet Union, and their allies were locked in a long, tense conflict known as the Cold War. Though the parties were technically at peace, the period was characterized by an aggressive arms race, proxy wars, and ideological bids for world dominance.
Explanation:
Answer: Olmec, Mayan, Toltec, Aztecs,
Explanation: Olmec is the first ancient civilization that started in 1600 B.C. Mayans began in 200 BC, Toltec began in 900 AD, and the Aztecs began in 1300 CE and were the strongest civilization. Spanish then came next in 1521 and conquered the Aztecs, claiming Mexico for Spain.
The answer is c) a precedence which means example
Is famous for being the foremost black leader during the first half of the twentieth century opposing racism and fighting for civil rights of African Americans.