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The coal-fired steam engine was soon developed. It became the key technology of the Industrial Revolution. In preindustrial Europe, water power was widely used as a source of energy. By the late 1700s, however, steam engines had been perfected
<span>Prince Estabrook was a enslaved Black man and Minutemen Private who fought and was wounded at the Battle of Lexington and Concord, the first battle of the American Revolutionary War.</span>
They built the first city in the world
They enacted the earliest known comprehensive legal code. ...
They developed the first ever positional number system. ...
They could perform advanced arithmetic calculations.
MESOPOTAMIA IS RESPONSIBLE FOR MANY “FIRSTS” IN HUMAN HISTORY
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During the late 1940s and early 1950s, the prospect of communist subversion at home and abroad seemed frighteningly real to many people in the United States. These fears came to define–and, in some cases, corrode–the era’s political culture. For many Americans, the most enduring symbol of this “Red Scare” was Republican Senator Joseph R. McCarthy of Wisconsin.
Explanation:
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