Socrates is one ancient Greek and he made great contributions to Western thought. He was a great philosopher. He is considered as one of the founders of Western philosophy. He is one person about whom the details are mostly known through the writings of other people. I hope the answer helps you.
The man who organized Roman law into an orderly body of rules was Emperor Justinian. This became known as Justinian's Code. This code served as the legal basis for several different elements of the Byzantine society including marriage, slavery, property, and women's rights. This code was world famous, as it lasted roughly 9 centuries and it became a foundation for several other empires/countries in developing their own legal codes.
Classical art is the paintings, sculptures and architectures of Ancient Greece and Rome.