Baptistry Tradition
Later accounts attributed to Pius I the establishment of a baptistry near Santa Pudenziana, although modern scholarship treats the story cautiously.
Historical events in 150
14 historical records
Hermas Family Connection
Ancient sources identify Hermas, author of The Shepherd, as a brother of Pius I.
Jewish Convert Baptism Tradition
The Liber Pontificalis later attributed to Pius I a ruling that Jewish converts to Christianity should be admitted to baptism.
Justin Martyr Teaching
Justin Martyr taught Christian doctrine in Rome during the episcopate of Pius I.
Roman Christian Intellectual Activity
The Roman Christian community during Pius I's episcopate hosted competing teachers including Justin, Valentinus, Cerdon and Marcion.
Santa Prassede Tradition
Later legend also associated Pius I with the Christian community remembered at Santa Prassede, but the tradition is not securely historical.
Santa Pudenziana Tradition
A later tradition connected Pius I with the early Christian community associated with Santa Pudenziana, although the historical basis is uncertain.
Shepherd of Hermas
The Muratorian Fragment later stated that Hermas wrote The Shepherd in Rome while his brother Pius occupied the Roman episcopal chair.
Heliodorus Family Connection
Cassius was the son of Gaius Avidius Heliodorus, who had served as prefect of Egypt under Antoninus Pius.
Julia Cassia Alexandra Lineage
Cassius's mother, Julia Cassia Alexandra, belonged to a distinguished eastern aristocratic family.
Armenian Kingship Approval
Antoninus Pius exercised Roman influence in Armenia by approving the appointment of a king there.
Pons Sublicius Restoration
Antoninus Pius restored the ancient Pons Sublicius as part of his practical public works program in Rome.
Slave Legal Protections
Legislation under Antoninus Pius strengthened legal protections for slaves and limited abusive treatment by owners.
Birth of Lucilla
Faustina gave birth to Lucilla, who later married the co-emperor Lucius Verus.