Harriet Tubman aided slaves from the south to escape their captors. She courageously set up the Underground Railroad by marking trees, and whites who opposed slavery set up “safe houses” she also informed that if a slave were to get lost, to look towards the sky and find the North Star.
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1. Trouble organizing a government system due to a lack of self-governing experience.
2. Being susceptible to coups and rebellions because of a lack of a strong, organized military.
3. Economic reliance on their parent countries, which caused their economies to be dependent on that of another country's.
4. Exploitation by other nations politically and economically, oftentimes through established monopolies.
5. Difficulties with establishing their native cultures, as they were under the influence of the European nations for so long.
Explanation:
Answer:
geocentric system
The Ptolemaic system also called the geocentric system or geocentric model, mathematical model of the universe formulated by the Alexandrian astronomer and mathematician Ptolemy about 150 CE and recorded by him in his Almagest and Planetary Hypotheses. Ptolemy made contributions to astronomy, mathematics, geography, musical theory, and optics. He compiled a star catalog and the earliest surviving table of a trigonometric function and established mathematically that an object and its mirror image must make equal angles to a mirror.
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George Washington: 6 Important Events in First President's Political Career. Washington decided against becoming "king" of the United States. After risking his life and the lives of his troops to lead the fight for independence, Washington returned the power to the people and the representatives they elected.
