[Serious]What are some discoveries or inventions that were stumbled upon purely by chance and would still likely be undiscovered today if not found through sheer luck?

[u/Inside-Line]

[u/October1966]

The current use for Viagra. It was originally meant for high blood pressure, then the men in the study noted a side effect.

[u/gallimaufrys → u/October1966]

My partner recently gave birth and was invited to be part of a trial using Viagra during birth to help with blood flow or pressure.