Temple of Jupiter (Capitoline Hill)

The Temple of Jupiter Optimus Maximus, also known as the Temple of Jupiter Capitolinus (Latin: Aedes Iovis Optimi Maximi Capitolini; Italian: Tempio di Giove Ottimo Massimo; English: "Temple of Jupiter Best and Greatest on the Capitoline") was the most important temple in Ancient Rome, located on the Capitoline Hill. It had a cathedral-like position in the official religion of Rome, and was surrounded by the Area Capitolina, a precinct where certain assemblies met, and numerous shrines, altars, statues, and victory trophies were displayed.

The first building was the oldest large temple in Rome, and can be considered as essentially Etruscan architecture. It was traditionally dedicated in 509 BC, but in 83 BC it was destroyed by fire, and a replacement in Greek style completed in 69 BC (there were to be two more fires and new buildings). For the first temple Etruscan specialists were brought in for various aspects of the building, including making and painting the extensive terracotta elements of the Temple of Zeus or upper parts, such as antefixes. But for the second building they were summoned from Greece, and the building was presumably essentially Greek in style, though like other Roman temples it retained many elements of Etruscan form. The two further buildings were evidently of contemporary Roman style, although of exceptional size.

The first version is the largest Etruscan temple recorded, and much larger than other Roman temples for centuries after. However, its size remains heavily disputed by specialists; based on an ancient visitor it has been claimed to have been almost 60 m × 60 m (200 ft × 200 ft), not far short of the largest Greek temples. Whatever its size, its influence on other early Roman temples was significant and long-lasting. Reconstructions usually show very wide eaves, and a wide colonnade stretching down the sides, though not round the back wall as it would have done in a Greek temple. A crude image on a coin of 78 BC shows only four columns, and a very busy roofline.

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