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History of aspirin. Aspirin (acetylsalicylic acid), an organic compound that does not occur in nature, was first synthesised in 1899. In 1897, scientists at the drug and dye firm Bayer began investigating acetylated organic compounds as possible new medicines, following the success of acetanilide ten years earlier.
[13]: 69–75 [18] By 1899, Bayer had named it "Aspirin" and was selling it around the world. [19] Aspirin's popularity grew over the first half of the 20th century, leading to competition between many brands and formulations. [20] The word Aspirin was Bayer's brand name; however, its rights to the trademark were lost or sold in many countries ...
Felix Hoffmann (21 January 1868 – 8 February 1946) was a German chemist notable for re-synthesising diamorphine (independently from C.R. Alder Wright who synthesized it 23 years earlier), which was popularized under the Bayer trade name of "heroin". He is also credited with synthesizing aspirin, though whether he did this under his own ...
Edward Stone was born in Princes Risborough, Buckinghamshire, England, in 1702. His parents were Edward Stone, a gentleman farmer, and his first wife Elizabeth Reynolds. His mother having died, his father took a second wife, Elizabeth Grubb, in 1707; the Grubb family was to play a major role in Stone's life. [ 1]
1908 – Victor Horsley and R. Clarke invents the stereotactic method. 1909 – First intrauterine device described by Richard Richter. [102] 1910 – Hans Christian Jacobaeus performs the first laparoscopy on humans. 1917 – Julius Wagner-Jauregg discovers the malarial fever shock therapy for general paresis of the insane.
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The timeline of the evolutionary history of life represents the current scientific theory outlining the major events during the development of life on planet Earth. Dates in this article are consensus estimates based on scientific evidence, mainly fossils. In biology, evolution is any change across successive generations in the heritable ...
The history of cardiopulmonary resuscitation (CPR) can be traced as far back as the literary works of ancient Egypt (c. 2686 – c. 2181 BC). [1] However, it was not until the 18th century that credible reports of cardiopulmonary resuscitation began to appear in the medical literature. [2]