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Italy, Rome, St. Peter's Basilica
Professor Dale Kinney



Constantine, Colossal Head, Rome, 315­30 CE Marble, Museo del Palazzo dei Conservatori, Musei Capitolini
 
 
The Early Christian Basilica: Introduction
The basilica is the most characteristic form of Christian church: a longitudinal building with an apse on one short side opposite the main entrance, often subdivided into long parallel spaces: the nave in the center, leading from entrance to apse, and narrower aisles on either side, separated from the nave by rows of columns. The invention of this building type is usually credited to the architects of the Roman emperor Constantine the Great (reigned 305–337), the first Christian emperor, who constructed many churches around the Mediterranean world after his legendary conversion to Christianity in 312.


Constantine the Great, c. 315, colossal head from a seated portrait statue, ht. 2.6 meters (original statue ht. 10 meters), marble, Palazzo dei Conservatori, Rome
In truth it is not entirely certain that the Christian basilica is a purely Constantinian invention. The Christian author Lactantius indicates that there was a large church building in Nicomedia (modern Ismit, in Turkey) already in 303 CE, which was torn down by soldiers as the persecuting emperors Diocletian and Galerius watched. This church was evidently a conspicuous building, on a high site with houses all around it. A few years later, Christians in Rome erected another very large building outside the city in a cemetery on the via Appia, facing the suburban villa of the pagan emperor Maxentius, and this one was definitely basilican. Nevertheless, it is still safe to say that Constantine's churches were far more influential than any Christian buildings made before him, and some of them determined the course of monumental Christian architecture for the next two millennia.


Bibliography

Achim Arbeiter, Alt-St. Peter in Geschichte und Wissenschaft (Berlin: Gebr. Mann Verlag, 1988).
Turpin C. Bannister, "The Constantinian Basilica of Saint Peter at Rome," Journal of the Society of Architectural Historians 27 (1968) 3–32.
Jürgen Christern and Katharina Thiersch, "Der Aufriss von Alt-St.-Peter, 2. Teil...," Römische Quartalschrift 64 (1969) 1–34.
Giacomo Grimaldi, Descrizione della Basilica antica di San Pietro in Vaticano. Codice Barberiniano latino 2733, ed. Reto Niggl (Vatican City, 1972).
Sible De Blaauw, Cultus et decor. Liturgia e architettura nella Roma tardoantica e medievale, II (Vatican City, 1994).
Dale Kinney, "The Apocalypse in Early Christian Monumental Decoration," in The Apocalypse in the Middle Ages, ed. Richard K. Emmerson and Bernard McGinn (Ithaca: Cornell University Press, 1992), 200–216.
Dale Kinney, "Spolia," in St. Peter's in the Vatican, ed. William Tronzo, forthcoming.
Richard Krautheimer, "The Building Inscriptions and the Dates of Construction of Old St. Peter's: A Reconsideration," Römisches Jahrbuch der Bibliotheca Hertziana 25 (1989), 1–23.
Richard Krautheimer, Spencer Corbett, Wolfgang Frankl, Corpus Basilicarum Christianarum Romae, V (Vatican City: Pontificio Istituto di Archeologia Cristiana, 1977).


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