The ''Umbilicus Urbis Romae'' ()—"Navel of the City of Rome"—was the symbolic centre of the city from which, and to which, all distances in
Ancient Rome
In modern historiography, ancient Rome refers to Roman civilisation from the founding of the city of Rome in the 8th century BC to the collapse of the Western Roman Empire in the 5th century AD. It encompasses the Roman Kingdom (753–509 B ...
were measured. It was situated in the
Roman Forum
The Roman Forum, also known by its Latin name Forum Romanum ( it, Foro Romano), is a rectangular forum (plaza) surrounded by the ruins of several important ancient government buildings at the center of the city of Rome. Citizens of the ancient ...
where its remnants can still be seen. These remains are located beside the
Arch of Septimius Severus
The Arch of Septimius Severus ( it, Arco di Settimio Severo) at the northwestern end of the Roman Forum is a white marble triumphal arch dedicated in 203 A.D. to commemorate the Roman-Parthian Wars, Parthian victories of Emperor Septimius Severu ...
and the
Vulcanal
The Shrine of Vulcan ( it, Volcanale), or Vulcanal, or Volcanal, was an 8th-century BC sacred precinct on the future site of the Roman Forum in Rome, modern Italy. Dedicated to Vulcan (mythology), Vulcan, the Roman god of fire, it was tradition ...
, behind the
Rostra
The rostra ( it, Rostri, links=no) was a large platform built in the city of Rome that stood during the republican and imperial periods. Speakers would stand on the rostra and face the north side of the comitium towards the senate house and deli ...
. Originally covered in marble, the ''Umbilicus'' is now a forlorn-looking brick core some 2 metres high and 4.45 metres in diameter.
History
Roman legend related that
Romulus
Romulus () was the legendary foundation of Rome, founder and King of Rome, first king of Ancient Rome, Rome. Various traditions attribute the establishment of many of Rome's oldest legal, political, religious, and social institutions to Romulus ...
, when he founded the city, had a circular pit dug in the Forum. The first fruits of the year were thrown into this pit as a sacrifice and all new citizens of Rome had to throw in a handful of dirt from their place of origin.
The ''Mundus'' (
Latin
Latin (, or , ) is a classical language belonging to the Italic branch of the Indo-European languages. Latin was originally a dialect spoken in the lower Tiber area (then known as Latium) around present-day Rome, but through the power of the ...
, "world"), known only from literary sources, was an underground structure considered a gate to the underworld. It may be that the ''Umbilicus Urbis Romae'' was the external (above ground) part of the subterranean ''Mundus''. The ''Mundus'' was ritually opened only three times each year. These days were considered ''
dies nefasti''—days on which official transactions were forbidden on religious grounds—because evil spirits of the underworld were thought to escape then.
The original masonry ''Umbilicus'' was probably constructed in the 2nd century BC. The existing ruins, however, are from the time of the Emperor
Septimius Severus
Lucius Septimius Severus (; 11 April 145 – 4 February 211) was Roman emperor from 193 to 211. He was born in Leptis Magna (present-day Al-Khums, Libya) in the Roman province of Africa (Roman province), Africa. As a young man he advanced thro ...
. The construction of his
triumphal arch
A triumphal arch is a free-standing monumental structure in the shape of an archway with one or more arched passageways, often designed to span a road. In its simplest form a triumphal arch consists of two massive piers connected by an arch, crow ...
in 203 AD encroached upon the ancient ''Umbilicus'', which was recreated to allow more space. Fragments of the older monument were used in the new one.
The ''Umbilicus'' is believed to be a separate structure from the ''
Milliarium Aureum
The ''Milliarium Aureum'' (; it, Miliario Aureo), also known by the translation Golden Milestone, was a monument, probably of marble or gilded bronze, erected by the Emperor Augustus near the Temple of Saturn in the central Forum of Ancient R ...
'', which was built nearby by
Augustus
Caesar Augustus (born Gaius Octavius; 23 September 63 BC – 19 August AD 14), also known as Octavian, was the first Roman emperor; he reigned from 27 BC until his death in AD 14. He is known for being the founder of the Roman Pri ...
(c. 20 BC) and served much the same purpose for distance reference.
Image:Umbilicus urbis.JPG
Image:UmbilicusUrbi.jpg, Entrance to the brick structure
See also
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Mundus Cereris
In ancient Roman religion, Ceres ( , ) was a goddess of agriculture, grain crops, fertility and motherly relationships.Room, Adrian, ''Who's Who in Classical Mythology'', p. 89-90. NTC Publishing 1990. . She was originally the central deity i ...
*
Milion
The Milion ( grc-gre, Μίλιον or , ''Míllion''; tr, Milyon taşı) was a monument erected in the early 4th century AD in Constantinople (modern-day Istanbul, Turkey). It was the Byzantine zero-mile marker, the starting-place for the measu ...
of Constantinople
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Kilometre Zero
In many countries, kilometre zero (also written ''km 0'') or similar terms in other languages (also known as zero mile marker, zero milepost, control stations or control points) denote a particular location (usually in the nation's capital cit ...
*
Datum (geodesy)
A geodetic datum or geodetic system (also: geodetic reference datum, geodetic reference system, or geodetic reference frame) is a global datum reference or reference frame for precisely representing the position of locations on Earth or other plan ...
References
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Buildings and structures completed in the 1st century BC
Ancient Roman roads in Rome
Geography of Rome
Roman Forum
Kilometre-zero markers
Rome R. X Campitelli
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