"C. was overthrown by invading Mongol tribes in A.D. 1279" would be the best phrase describing China's Song Dynasty, but this was of course not always the case.
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
Purchasing a commodity over a period of time. The buyer gains the use of the commodity immediately and then pays for it in periodic payments called installments.
~Hello there! ^_^
Your question: Who was the first black student to enroll at the University of Mississippi..?
Your answer: James Meredith was the first black student to enroll at the University of Mississippi.
Hope this helps~