Yes, the Second Industrial Revolution did differ from the first<span> in some important ways. ... The </span>Second Industrial Revolution<span> was about electricity and chemicals and petroleum and all the things that can be made and consumed using these. The</span>First<span> was about textiles and coal and iron. A worldwide economy.</span>
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Maya mathematics constituted the most sophisticated mathematical system ever developed in the Americas. The Maya counting system required only three symbols: a dot representing a value of one, a bar representing five, and a shell representing zero.
The correct answer is the battle of gettysburg
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During the late nineteenth century the U.S. economy underwent a spectacular increase in industrial growth. Factory workers had to face long hours, poor working conditions, and job instability. During economic recessions many workers lost their jobs or faced sharp pay cuts.
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The Hausa states were exhausted economically because of internal and external constant wars. It was taken over by the Kanem-Bornu after the conquest of Usuman dan Fodio.
The location of Kanem-Bornu was at the center of African continent which is now part of Chad and Nigeria. The special geopolitical position attracted trades and the empire actually lied on the famous trans-Saharan trade route, that contributed to its power.
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