Since ancient times, physicians have soaked the bark of willow trees and other plant materials to create a tea which can relieve pain. In the 19th century, it was discovered that salicylic acid was the cause for the teas analgesia. In 1859, German chemist Hermann Kolbe worked out a method to artificially synthesize salicylic acid within the laboratory. This medication unfortunately caused stomach issues for many people but in 1897, German researcher Felix Hoffmann who had arthritis himself added...
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