Justin Martyr was an early Christian apologist and philosopher. Most of his works are lost, but two apologies and a dialogue did survive.
EARLY CHRISTIANITY: Theophilus of Antioch – Valuable Testimony
Theophilus was Patriarch of Antioch from 169 until 182. He succeeded Eros c. 169 AD and was succeeded by Maximus I c. 183 AD. His death probably occurred about 182. He is included among the dozen or so Christian apologists of his day.
THE APOLOGISTS: Were They Christian Defenders of the Faith?
THE CHRISTIAN APOLOGISTS (150 – 220 A.D.) were churchmen who are today simply referred to as the Apologists. They wrote in defense of Christianity and criticisms of paganism and other aspects of Greco-Roman culture.