History of Bolivia to 1809 reduction in silver output. After 1700 only small amounts of bullion from Upper Peru were shipped to Spain. Kings from the Bourbon Dynasty in Spain tried to reform the colonial economy in the mid-eighteenth century by reviving mining. The Spanish crown provided the financial support necessary to develop deeper shafts, and in 1736 it agreed to lower the tax rate from 20 to 10 percent of the total output. The crown also helped create a minerals purchasing bank, the Banco de San Carlos in 1751 and subsidized the price of mercury to local mines. The foundation of an academy of
Society and culture of the Han dynasty salty), or even things like feelings, musical notes, colors, planets, calendars and time periods. It was accepted during the Qin dynasty that whoever defeated his rivals in battle would have legitimacy to rule the land. Yet by the time of Wang Mang's usurpation it was commonly believed that Heaven, which was now given greater prominence in state worship, designated which individual and hereditary house had the right to rule, a concept known as the Mandate of Heaven. Michael Loewe (retired professor from the University of Cambridge) writes that this is consistent with the gradually higher level of emphasis given to