{"id":11508,"date":"2017-10-13T09:16:00","date_gmt":"2017-10-13T09:16:00","guid":{"rendered":"https:\/\/crunchlearning.com\/website_ec2cbfb0\/?p=11508"},"modified":"2026-05-22T02:10:21","modified_gmt":"2026-05-22T02:10:21","slug":"pantheon-in-ancient-rome","status":"publish","type":"post","link":"https:\/\/crunchlearning.com\/website_ec2cbfb0\/pantheon-in-ancient-rome\/","title":{"rendered":"Pantheon in Ancient Rome: A Detailed Summary"},"content":{"rendered":"\n

The Pantheon is one of the most famous and best-preserved buildings from Ancient Rome<\/a>. Located in the heart of the city, it was originally built as a temple dedicated to the gods of Rome and has been in continuous use for nearly 2,000 years. The structure that stands today was built under Emperor Hadrian, completed around 125 or 126 CE, and is remarkable above all for its enormous concrete dome, which remained the largest dome in the world for more than 1,300 years and continues to astonish architects and engineers today. No other building survives from the ancient world in as complete a state as the Pantheon, making it one of the most important monuments of human architectural history.<\/p>\n\n\n\n

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WHAT WAS ANCIENT ROME?<\/h2>\n\n\n\n

Ancient Rome<\/a> was one of the most powerful civilizations in world history. It began as a small city-state on the Italian peninsula and grew over many centuries into a vast empire that stretched from Britain in the northwest to Egypt in the southeast. Roman civilization is remembered for its contributions to law, government<\/a>, architecture<\/a>, language, and culture. The Pantheon stands as one of the best examples of what Roman architects and engineers were capable of achieving, and its influence on the architecture of later centuries is almost impossible to overstate.<\/p>\n\n\n\n

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PANTHEON IN ANCIENT ROME \u2013 THE ORIGINAL BUILDING<\/h2>\n\n\n\n

The site of the Pantheon was first developed by Marcus Vipsanius Agrippa, one of the most important statesmen and generals of the age of Emperor Augustus<\/a>. Agrippa built the original Pantheon around 25 BCE as part of a broader program of public building that transformed the Campus Martius district of Rome. The building was dedicated to the gods of Rome<\/a> and the inscription he placed on its facade read, in translation, “Marcus Agrippa, son of Lucius, three times consul, built this.” This inscription still appears on the Pantheon today, though it now refers to the completely rebuilt structure of Hadrian’s era rather than Agrippa’s original.<\/p>\n\n\n\n

Agrippa’s original building was quite different from what stands today. It was oriented differently and was probably a more conventional rectangular temple design rather than the circular rotunda we know. The original building was destroyed in a great fire in 80 CE. It was rebuilt by Emperor Domitian, who ruled from 81 to 96 CE, but that rebuilding was itself destroyed in another fire in 110 CE.<\/p>\n\n\n\n

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PANTHEON IN ANCIENT ROME \u2013 HADRIAN’S REBUILDING<\/h2>\n\n\n\n

The Pantheon that exists today was built by Emperor Hadrian, who ruled from 117 to 138 CE. Work on the new building probably began around 118 CE and was completed around 125 or 126 CE. Hadrian was deeply interested in architecture and personally involved in many of the building projects of his reign. The identity of the architect who designed the Pantheon is unknown. Ancient sources do not record the designer’s name, and attempts to attribute it to various Roman architects have not been conclusively proven.<\/p>\n\n\n\n

One of the most unusual decisions Hadrian made was to keep Agrippa’s original inscription on the new building rather than replacing it with his own name. This was highly unusual in Roman culture, where emperors typically put their own names on the buildings they constructed. One interpretation is that Hadrian was associating his new building with the prestigious era of Augustus without drawing explicit attention to himself. Whatever his reasons, the decision has caused centuries of confusion, with many people in the medieval period and beyond believing the building dated from Agrippa’s time.<\/p>\n\n\n\n

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PANTHEON IN ANCIENT ROME \u2013 ARCHITECTURE AND DESIGN<\/h2>\n\n\n\n

The Pantheon is made up of two main parts: a rectangular front porch called the portico, and a circular domed drum called the rotunda behind it.<\/p>\n\n\n\n

The portico is supported by sixteen massive columns of granite, each about 39 feet (12 meters) tall and 5 feet (1.5 meters) in diameter. The eight columns in the front row are made of grey granite from the imperial quarry at Mons Claudianus in Egypt’s eastern desert, while the columns behind are of pink granite from Aswan. These columns were quarried in Egypt and transported by wooden sled across the desert to the Nile, floated by barge down the river during the spring floods, and then shipped across the Mediterranean to Ostia and hauled up the Tiber to Rome, an extraordinary feat of logistics in itself. Above the columns sits a triangular pediment with Agrippa’s inscription carved across the architrave below it.<\/p>\n\n\n\n

The rotunda is the most remarkable part of the building. It is a perfect cylinder of brick and concrete roughly 143 feet (43.3 meters) in both diameter and height. The walls of the cylinder are 20 feet (6 meters) thick, and inside them are concealed a series of large brick arches and chambers that distribute the weight of the dome above down to the foundations. This structural system is one of the most sophisticated of the ancient world, and its details were not fully understood until modern structural analysis was applied to it.<\/p>\n\n\n\n

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PANTHEON IN ANCIENT ROME \u2013 THE DOME<\/h2>\n\n\n\n

The dome of the Pantheon is the building’s greatest achievement and one of the most remarkable feats of engineering in the history of architecture. It has a diameter of 142 feet (43.3 meters) and rises to the same height above the floor, meaning that a perfect sphere exactly the height and width of the dome would fit precisely within the interior space. This geometric precision was not accidental. It reflects a sophisticated understanding of proportion and was almost certainly intentional.<\/p>\n\n\n\n

The dome was built from Roman concrete mixed with progressively lighter materials as it rose higher. Near the base, the aggregate mixed into the concrete was heavy travertine limestone. Higher up, lighter volcanic rock called tufa was used. Near the top, the lightest available material, pumice, was mixed in. The thickness of the dome also decreases from about 20 feet (6 meters) at the base to about 4 feet (1.2 meters) near the top. These two techniques, using lighter materials and reducing thickness as the dome rose, significantly reduced the weight pressing down on the walls below and made the construction structurally possible.<\/p>\n\n\n\n

At the very top of the dome is a circular opening called the oculus, which is 28 feet (8.5 meters) in diameter. The oculus is the only source of natural light for the entire interior and is open to the sky. When it rains, water falls through the oculus to the floor below, which is slightly domed itself and has small drains built into its surface that carry the water away. The shaft of light that enters through the oculus moves across the interior walls and floor as the sun moves through the sky, creating a constantly changing pattern of light that ancient Romans would have understood as symbolic of the presence of the sun god in the temple. Michelangelo, when he saw the Pantheon for the first time, reportedly said it looked more like the work of angels than of human beings.<\/p>\n\n\n\n

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PANTHEON IN ANCIENT ROME \u2013 PURPOSE AND USE<\/h2>\n\n\n\n

The exact purpose of the Pantheon in ancient times is not entirely clear. The name itself comes from Greek words meaning all gods, and it was certainly associated with the divine. Ancient writers mention that Hadrian sometimes held court inside the building, receiving foreign dignitaries and conducting official business there. This suggests the building had civic as well as religious functions<\/a>.<\/p>\n\n\n\n

The interior of the Pantheon was richly decorated. The floor was covered in colored marble arranged in geometric patterns, most of which still survives today. The walls were faced with marble and other decorative stones, some of which remain in place, though much was removed in later centuries. Niches around the walls held statues of the gods, and the overall effect of the interior, with its soaring dome, colored marble surfaces, and dramatic oculus, would have been one of the most impressive spaces any ancient Roman had ever entered.<\/p>\n\n\n\n

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PANTHEON IN ANCIENT ROME \u2013 FROM TEMPLE TO CHURCH<\/h2>\n\n\n\n

The Pantheon’s survival through nearly two thousand years is largely due to a decision made in 609 CE, when the Byzantine<\/a> Emperor Phocas donated the building to Pope Boniface IV. The pope had the remains of Christian martyrs brought from the catacombs and placed inside, and the building was formally consecrated as a Christian church, officially named the Basilica of Saint Mary and the Martyrs. This conversion to church use protected the building from the destruction and looting that befell nearly all other major Roman monuments through the medieval period. A building that was still actively used for worship was far less likely to be stripped for building materials than an abandoned pagan temple.<\/p>\n\n\n\n

The Pantheon did suffer some losses over the centuries. In 663 CE, the Byzantine Emperor Constans II visited Rome and stripped the gilded bronze tiles from the roof of the portico, taking them to Constantinople. The roof was left uncovered for decades before eventually being lined with lead. In the 1620s, Pope Urban VIII had the bronze ceiling of the porch removed to provide material for Bernini’s famous baldachin over the altar of St. Peter’s Basilica in the Vatican, an act that Romans were reportedly so outraged by that they coined the saying “What the barbarians did not do, the Barberini did,” referring to the pope’s family name. Two bell towers were also added to the sides of the porch in the 1620s but were removed in the 1880s as they were widely considered ugly.<\/p>\n\n\n\n

Today the Pantheon continues to function as a Catholic church. Mass is celebrated there regularly. It is also the burial place of several important figures, including the painter Raphael<\/a>, who died in 1520 and requested to be buried there, and two kings of unified Italy, Victor Emmanuel II and Umberto I.<\/p>\n\n\n\n

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SIGNIFICANCE OF THE PANTHEON IN ANCIENT ROME<\/h2>\n\n\n\n

The Pantheon is significant for several interconnected reasons. As a work of engineering, it represents the highest achievement of Roman concrete construction, demonstrating a mastery of structural design that was not surpassed for over a millennium. As a work of architecture, its perfect proportions, dramatic use of light, and combination of Greek and Roman elements made it a model that architects have been studying and copying ever since.<\/p>\n\n\n\n

Its influence on later architecture is extraordinary. Brunelleschi<\/a> studied the Pantheon carefully before designing the dome of Florence Cathedral in the fifteenth century, which was the first great dome of the Renaissance<\/a>. The Pantheon directly inspired St. Paul’s Cathedral in London, the Panth\u00e9on in Paris, and the Rotunda at the University of Virginia designed by Thomas Jefferson<\/a>. The dome of the United States Capitol Building reflects its influence. Whenever a domed building with a front porch of classical columns appears in European or American architecture, it is drawing on a tradition that leads directly back to Hadrian’s Pantheon. Few buildings in human history have shaped the look of the built world as thoroughly as this 2,000-year-old temple in the center of Rome.<\/p>\n","protected":false},"excerpt":{"rendered":"

The Pantheon is one of the most famous buildings from Ancient Rome, built under Emperor Hadrian around 125 CE and featuring the largest unreinforced concrete dome ever constructed, which still stands intact today. This article details the history and significance of the Pantheon in Ancient Rome.<\/p>\n","protected":false},"author":4,"featured_media":12479,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"iawp_total_views":3,"footnotes":""},"categories":[40],"tags":[130,15],"class_list":["post-11508","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-ancient-rome","tag-ancient-rome","tag-history"],"_links":{"self":[{"href":"https:\/\/crunchlearning.com\/website_ec2cbfb0\/wp-json\/wp\/v2\/posts\/11508","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/crunchlearning.com\/website_ec2cbfb0\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/crunchlearning.com\/website_ec2cbfb0\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/crunchlearning.com\/website_ec2cbfb0\/wp-json\/wp\/v2\/users\/4"}],"replies":[{"embeddable":true,"href":"https:\/\/crunchlearning.com\/website_ec2cbfb0\/wp-json\/wp\/v2\/comments?post=11508"}],"version-history":[{"count":5,"href":"https:\/\/crunchlearning.com\/website_ec2cbfb0\/wp-json\/wp\/v2\/posts\/11508\/revisions"}],"predecessor-version":[{"id":11966,"href":"https:\/\/crunchlearning.com\/website_ec2cbfb0\/wp-json\/wp\/v2\/posts\/11508\/revisions\/11966"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/crunchlearning.com\/website_ec2cbfb0\/wp-json\/wp\/v2\/media\/12479"}],"wp:attachment":[{"href":"https:\/\/crunchlearning.com\/website_ec2cbfb0\/wp-json\/wp\/v2\/media?parent=11508"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/crunchlearning.com\/website_ec2cbfb0\/wp-json\/wp\/v2\/categories?post=11508"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/crunchlearning.com\/website_ec2cbfb0\/wp-json\/wp\/v2\/tags?post=11508"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}