60495
It was not at all unusual for a new discovery to be announced as an anagram , reserving priority for the discoverer , but indecipherable for anyone not in on the secret : both Isaac Newton and Leibniz used this approach .
 Isaac Newton, Leibniz
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:
 Isaac Newton, Leibniz