Readers meet many important figures, including the Roman general Flavius Dionysius as he encounters a delegation from Persia after the Sassanids annex Armenia; the Christian ascetic Simeon Stylites as he stands and preaches atop his column near Antioch; the eastern Roman emperor Theodosius II as he prepares to commission his legal code; and Genseric as he is elected king of the Vandals and begins to turn his people into a formidable power. We are also introduced to Pulcheria, the powerful sister of Theodosius, and Galla Placidia, the queen mother of the western empire, as well as Augustine, Pope Celestine I, and nine-year-old Roman emperor Valentinian III.
Full of telling details, 428 AD illustrates the uneven march of history. As the west unravels, the east remains intact. As Christianity spreads, pagan ideas and schools persist. And, despite the presence of the forces that will eventually tear the classical world apart, Rome remains at the center, exerting a powerful unifying force over disparate peoples stretched across the Mediterranean.