Nicias of Nicaea, was a biographer and historian

Historian

A historian is a person who studies and writes about the past and is regarded as an authority on it. Historians are concerned with the continuous, methodical narrative and research of past events as relating to the human race; as well as the study of all history in time. If the individual is...

 of ancient Greek philosophers

Greek philosophy

Ancient Greek philosophy arose in the 6th century BCE and continued through the Hellenistic period, at which point Ancient Greece was incorporated in the Roman Empire...

. Nothing is known about his life, he may have lived in the 1st century BC or AD. He is repeatedly referred to by Athenaeus

Athenaeus

Athenaeus , of Naucratis in Egypt, Greek rhetorician and grammarian, flourished about the end of the 2nd and beginning of the 3rd century AD...

. His principal work seems to have been a Successions

Successions of Philosophers

Successions of Philosophers or Philosophers' Successions was the name of several lost works from the Hellenistic era. Their purpose was to depict the philosophers of different schools in terms of a line of succession of which they were a part...

, a history of the various schools of philosophy. Athenaeus also mentions a work On the Philosophers , A third work, a History of Arcadia is also referred to, but whether it is by this Nicias is unclear.