The philosopher that believed that sense perceptions and observations re essential for knowledge is :
Socrates
By having own perceptions and observations , a person could create a better understanding about the knowledge and formed some sort of method for themselves
hope this helps
They're known as Indo- Europeans.
Indo-Europeans is a general name for the people speaking an Indo-European language. They are (linguistic) descendants of the people of the Yamnaya culture in Ukraine and southern Russia, and settled in the area from Western Europe to India.
They raised cattle and horses. They were the first ones to domesticate horses, which increased their ability to travel and migrate
