The Union Pacific and central pacific
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At his death eleven years later, Alexander ruled the largest empire of the ancient world. His victory at the battle of Gaugamela on the Persian plains was a decisive conquest that insured the defeat of his Persian rival King Darius III.
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The French Revolution of 1789, while based on the ever-growing popular Enlightenment ideals put forth by philosophers such as Descartes, Voltaire, and Diderot, ultimately failed because the change in regime created a severe power vacuum. This allowed radicals to seize power and sow chaos within France.
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