Felix Hoffmann in 1890 with the pharmaceutical state exam. In 1891 he graduated magna cum laude from the University of Munich. Two years later he earned his doctorate, also magna cum laude, after completing his thesis entitled "On certain derivatives of dihydroanthracene". In 1894, he joined Bayer as a research chemist. On 10 August 1897 Hoffmann synthesized acetylsalicylic acid (ASA) while working at Bayer under Arthur Eichengrün. By combining salicylic acid with acetic acid, he succeeded in creating ASA in a chemically pure and stable form. The pharmacologist responsible for verifying these results was skeptical at first, yet once several large-scale studies
Asa Townsend Asa Townsend Asa Townsend (c.1775-alive 1851) was an early settler in Westminster Township near what became the City of London, Ontario. His lands ultimately became incorporated in London's Springbank Park. By the 1820s he removed westward to settle on the bank of the Ausable River in what later became Bosanquet Township in Lambton County. Here he operated a salt well. He and his wife—whose name is not known—are credited with being the first white settlers in the area of the present village of Arkona, Ontario. Asa was still living at the time of the 1851 Bosanquet Township assessment, living just