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
The Exception and the Rule be seen as arguing in favor of Brecht's Marxist politics. Brecht wishes to protest against established rule, in which the working class is allegedly exploited, and bias us in a set of future rules. "He hanshan" ("The Confronted undershirt"), a Yuan Dynasty-era Chinese play, was the model for "The Exception and the Rule". The scholar Antony Tatlow discovered this relationship through archival materials. The Exception and the Rule The Exception and the Rule (in German Die Ausnahme und die Regel) is a short play by German playwright Bertolt Brecht and is one of several "Lehrstücke" (Teaching plays) he wrote around