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Hadrian’s Pantheon

The Pantheon in Rome was rebuilt in the form that still stands: a columned portico joined to a vast rotunda under a concrete dome 43 metres across, open to the sky through its oculus. Almost two thousand years later it is still the largest unreinforced concrete dome in the world.

Date
between 114 and 118 – between 125 and 128exact date unknown: an interval is given · duration: ≈ 11 years
Place
Pantheontoday: Piazza della Rotonda, Rome, Italy · Western and Central Europe
Participants
Hadrian, Trajan
Threads
Europe in the Roman age (1st–5th c.)
Also known as
Pantheon; Pantheum; Santa Maria ad Martyres; Santa Maria Rotonda; Пантеон; Храм всех богов

The first Pantheon was built by Marcus Agrippa, Augustus’s general, on the Campus Martius in the 20s BC. It burned in 80, was restored by Domitian and burned again in 110. The present building was long dated wholly to Hadrian’s reign — between 118 and 128 — largely on the evidence of the stamps on its bricks; a re-examination of the stamps suggests that work began under Trajan, around 114, perhaps to a design by his architect Apollodorus of Damascus, and was finished under Hadrian, who probably dedicated the temple about 126. Hadrian did not put his own name on it: the frieze repeats the inscription of the original, M·AGRIPPA·L·F·COS·TERTIVM·FECIT (“Marcus Agrippa, son of Lucius, made this when consul for the third time”), and Cassius Dio, writing some 75 years later, took the domed building for Agrippa’s. Dio also records that Hadrian held court there.

The rotunda is exactly as high as it is wide — 43.3 m, or 150 Roman feet — so that a sphere of that size would fit inside. The concrete of the dome grows lighter towards the top, where pumice and tufa were used, and the open oculus is the only source of light apart from the door. The emperor Phocas gave the building to Pope Boniface IV, who on 13 May 609 consecrated it as the church of St Mary and the Martyrs; continuous use has made it one of the best-preserved buildings of ancient Rome and a model for architects from the Renaissance onwards.

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Sources

  1. Wikipedia (English): Pantheon, Rome
  2. Wikipedia (English): Hadrian
  3. Wikipedia (Russian): Пантеон (Рим)
  4. Wikipedia (Russian): Адриан
  5. Cassius Dio. Roman History, LIII.27; LXIX.7.
  6. MacDonald W. L. The Pantheon: Design, Meaning, and Progeny. — Cambridge, MA: Harvard University Press, 1976.
  7. Hetland L. M. Dating the Pantheon // Journal of Roman Archaeology. — 2007. — Vol. 20. — P. 95–112.