nov 6, 150 BC - Galen Was a physician to the gladiators; said that rational thought is stored in the brain, but that it also keeps flowing as a liquid source → was referring to brain ventricles filled with cerebrospinal fluid → thought different ventricles had different roles (front = senses, middle = reason, & back = emotion and movement)
Added to timeline:
Date:
nov 6, 150 BC
Now
~ 2177 years ago