I think A but I`m not a hundred % sure. :)
Samuel Morse invented the telegraph. The telegraph allowed for the United States to continue expansion westward but still be able to communicate with more areas of the country. This communication system typically followed along rail routes and if a rail line was close by this communication system could be used to issue alerts, news, and messages across the country. This technology allowed for a capital on one side of the country to keep tabs on the other coast.
<span>In September 1957 the school board in Little rock, Arkansas, won a court order to admit nine African American students to Central High a school with 2,000 white students. The governor ordered troops from Arkansas National Guard to prevent them from entering the school. The next day as the National Guard troops surrounded the school, an angry white mob joined the troops to protest the integration plan and to intimidate the AA students trying to register. The mob violence pushed Eisenhower's patience to the breaking point. He immediately ordered the US Army to send troops to Little Rock to protect and escort them for the full school year.
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Answer:
Reasons of migration
Persecution because of one's ethnicity, religion, race, politics or culture can push people to leave their country. A major factor is war, conflict, government persecution or there being a significant risk of them.
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Answer:
Newton discovered gravity. The discovery of gravity .. Newton argued that the main force in the universe, although it was very much clear to Newton that gravity basically affected all objects on Earth and including in space.
