The development of railroads was one of the most important phenomena of the Industrial Revolution. Trains provided supplies and equipment and a lifeline of the army. Trains made a big impact on the citizens. Railroads were visible symbols of industry and modernity during the Civil War.
Answer: From the White House, US President John F Kennedy cancelled at the last minute the US air strikes that would have neutralised Castro's aviation. He did so because he felt the United States could not appear to be behind the invasion
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Credit for our modern version of the school system usually goes to Horace Mann. When he became Secretary of Education in Massachusetts in 1837, he set forth his vision for a system of professional teachers who would teach students an organized curriculum of basic content.
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Thats easy its because when they have kids and they die the kids will rule the same way which keeps the country running but if they dont have a heir then someone from the government will become king and mess up the government.