Because the Silk Road established steady trade
They are called Calvary.
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Prior to the outbreak of the Civil War, the election of 1860 increased sectional tensions of the United States by lifting pro-union, anti-slavery statesman, Abraham Lincoln into the Presidency. In reaction, the Southern States protested in many ways, but in no more dramatic way than, one by one, seceding.
The Magna Carta established the basis for representative democracy as it was the first attempt after the fall of the classical Graeco-Roman era of a form of parliament, where nobles would meet to deliberate the course of society,and advise the kings on policy issues. It was a paradigm shift from the absolute politics and power structures of dark Europe, forming to inspire future government discussions in England and USA.