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
Twenty-seventh Dynasty of Egypt the effort. Artaxerxes II was still recognized as the rightful Pharaoh in some parts of Egypt as late as 401 BC, although his sluggish response to the situation allowed Egypt to solidify its independence. During the period of independent rule three indigenous dynasties reigned: the 28th, 29th, and 30th Dynasty. Artaxerxes III (358 BC) reconquered the Nile valley for a brief second period (343 BC), which is called the 31st Dynasty of Egypt. The pharaohs of the 27th Dynasty ruled for approximately one hundred and twenty one years, from 525 BC to 404 BC. Twenty-seventh Dynasty of Egypt The Twenty-seventh