Title: Emperor Constantine I, his mother, Empress Helena, and their establishment of the true Christian religion (306-337 A.D.)
Subjects: Biography, Church history, Emperors, Empresses, Family, History, Holy Cross, Legends, Religion
Places: Rome
People: Constantine I Emperor of Rome (d. 337), Helena Saint (ca. 255-ca. 330), Jack Chapline Vaughan (1912-), Vaughan family
Time periods: Constantine I, the Great, 306-337, Primitive and early church, ca. 30-600