97826
The study of nature revived in the Renaissance , and quickly became a third branch of academic knowledge , itself divided into descriptive natural history and natural philosophy , the analytical study of nature .
 Renaissance
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: media, plant, vehicle, astronomical object, time, disease, animal, location, person, organization, mythical figure, food, biology, geographical phenomenon, instrument, event 
Text: {0} 
Answer:
 Renaissance