Answer:
"Plato introduced the analysis of emotions into philosophy as part of his famous tripartition of the soul in book IV of the Republic. ... Like Plato, Aristotle regarded emotions as passive psychosomatic reactions which were anchored in the emotional power of the soul and divided into concupiscible and irascible types."
Plato, Socrates, and Aristotle we're basically the best philosophers and we're well known, they included emotions in their philosophies and defined emotions their way.
Step-by-step explanation:
I tried my best to gather you the most infomation.I hope this helps you with your question though it was hard for me to find the first philosophers who were inspired by emotional experience.