Pain on the run since…

Aspirin can kill (poster; home safety; accident prevention) by The Health Education Council is licensed under CC-BY-NC-SA 4.0

The use of ASA has been a therapy for two and a half millenniums. Originally the compound was harvested from the bark of the willow tree.

Over time, this pain killer or tonic was refined until in 1899 the Bayer Company refined it, named it Aspirin, and marketed it worldwide.