When was the concept of "art criticism" first seen?

Question

Today being an [art critic](http://en.wikipedia.org/wiki/Art_critic) is a full time occupation for some individuals. When/where does the concept of "art criticism" first come into being? **Clarify**I am **NOT** looking for a random person sharing a personal opinion. I am looking for a professional person or skill set, recognized by the public in general or an employer (such as the government) for their skill in rating/criticizing/censoring art. They raised payment in financial support or public recognition. We recognize [Socrates](http://en.wikipedia.org/wiki/Socrates) as a philosopher because he was recognized by his peers (*though I don't believe he was paid for the act*).

Answer 1

Giorgio Vasari was a 16th century Italian philosopher who wrote 'the first' book that included on the Renaissance, which included discussions of art, theory and artist biographies. He is considered a historian, but his writings were very biased and he clearly stated which artists he valued over others. Hope this helps.