Qinling has never been a political section of China.
Two major effects of the Crusades were that the kings' authority increased and the Europeans learned about new things from the Muslims they encountered. During the Crusades, the kings increased taxes to fund the cause. Many peasants also left their land to fight, and when they died, the land went to the king. With large amounts of money and land coming in, the kings gained power.
The South did not like the American System at all. They thought that it only benefited the North. They didn't like the protective tariff because much of their economy was based on trading with Britain. The tariff made import and exporting goods more expensive with left the southerners with less money.
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The house of burgesses in virginia (1619)
Because the South wanted to become their own separate country. They even elected their own president.