A unicorn horn, also known as an alicorn, is a legendary object whose reality was accepted in Europe and Asia from the earliest recorded times. This "horn" comes from the creature known as a unicorn, also known in the Hebrew Bible as a re´em or wild ox. Many healing powers and antidotal virtues were attributed to the alicorn, making it one of the most expensive and reputable remedies during the Renaissance, and justifying its use in the highest circles. Beliefs related to the alicorn influenced alchemy through spagyric medicine. The horn´s purificational properties were eventually put to the test in, for example, the book of Ambroise Paré, Discourse on unicorn.
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