A distinguished early Christian writer, born in Palestine, bishop of Caesarea in 313; headed the moderate Arians at the Council of Nice, who shrank from disputing about a subject so sacred as the nature of the Trinity; wrote a history of the world to A.D. 328; his "Ecclesiastical History" is the first record of the Christian Church up to 324; also wrote a Life of Constantine, who held him in high favour; many extracts of ancient writers no longer extant are found in the works of Eusebius (about 264-340).