The invention of aspirin by Gerhardt was abandoned until Felix Hoffman, a German chemist, rediscovered it in 1887 and learned of its special home of reduced gastrointestinal discomfort when compared with salicylic acid. Soon afterward, "aspirin" was patented by Bayer in 1889 as a brand new analgesic wonder drug. The https://www.directivepublications.org/allergy-and-clinical-immunology/