4th century in architecture

See also: 3rd century in architecture, other events of the 4th century, 5th century in architecture and the architecture timeline.

Events

• 313 - Emperor Constantine issues the Edict of Milan, legislating toleration of Christian worship in the Roman Empire. The 4th century sees the construction of many churches, especially in Rome (see below), and in the eastern empire.

Buildings

• 312 - Arch of Constantine begun.
• 380s - Basilica Apostolorum constructed.
• 386 - Basilica Martyrum, built by St. Ambrose, in Milan, is consecrated.
• 393 - The Forum of Theodosius, reconstructed over the Forum Tauri, is inaugurated in Constantinople.
• Date unknown:
  • Church of St. George is built in Serdica.

Churches in Rome

• San Marcello al Corso (309)
• Santi Quattro Coronati (314)
• St. Peter's Basilica (324)
• San Giovanni in Laterano (324)
• Santa Croce in Gerusalemme (325)
• Santa Susanna (330)
• San Marco (336)
• Santa Anastasia (early 4th century)
• Santa Costanza (early 4th century)
• Santa Maria in Trastevere (early 4th century)
• Santi Nereo e Achilleo (before 377)
• San Lorenzo in Damaso (380)
• Saint Paul Outside the Walls (386)
• Santi Giovanni e Paolo (Rome) (398)
• San Sisto Vecchio (late 4th century)
• San Clemente (4th century)
• San Lorenzo in Lucina (4th century)
• Santi Marcellino e Pietro (4th century)
• Santa Pudenziana (4th century)
• San Sebastiano fuori le mura (4th century)
• San Vitale (400)