Jesuit's Bark, later called Peruvian Bark (fever-wood) is the bark of the cinchona or chinchona tree. Its existence was brought to Europeans by a Jesuit about 1535 but it was not generally used until 1633 when the wife of the viceroy of Peru was cured of a fever with it. She brought it to Europe in 1639 and it came into general use in 1680. The active constituent of Jesuit's Bark is quinine. Research Jesuit's Bark
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Research Jesuit's Bark
