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
Which Bridge to Cross (Which Bridge to Burn) and raises the chill bumps at every turn." "Which Bridge to Cross (Which Bridge to Burn) debuted at number 61 on the U.S. "Billboard" Hot Country Singles & Tracks for the week of February 4, 1995. Which Bridge to Cross (Which Bridge to Burn) "Which Bridge to Cross (Which Bridge to Burn)" is a song co-written and recorded by American country music artist Vince Gill. It was released in January 1995 as the fourth single from the album "When Love Finds You". The song reached number 4 on the "Billboard" Hot Country Singles & Tracks chart. It was written by