jan 1, 2650 BC - Imhotep and the Ancient Egyptians The Egyptians experimented with medicine and although it cost quite a few lives they did discover quite a bit Such as: moldy bread has penicillin in it and can help heal wounds and poppy seeds can ease pain. They could record all of their discoveries on papyrus.
Added to timeline:
Date:
jan 1, 2650 BC
Now
~ 4678 years ago