The ancient Greeks gave women in childbirth tea made of willow tree leaves. The leaves and bark were used in many places as pain reliever, fever reducer, and anti-inflammatory due to its medicinal properties.
Active Ingredient Found
In Europe, the active ingredient was found to be salicin. Salicin could be transformed to form salicylic acid which was more effective, but irritated the stomachs of patients
At the pharmaceutical company Bayer, acetylsalicylic acid was discovered to work as well as salicylic acid but doesn't irritate the stomach
Felix Hoffman discovers Acetylsalicylic Acid
Aspirin Produced for Consumers
Bayer gets a patent for Aspirin and begins mass producing it for consumers.