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The Rubicon ( la, Rubico; it, Rubicone ; rgn, Rubicôn ) is a shallow
river A river is a natural flowing watercourse, usually freshwater, flowing towards an ocean, sea, lake or another river. In some cases, a river flows into the ground and becomes dry at the end of its course without reaching another body of wate ...
in northeastern
Italy Italy ( it, Italia ), officially the Italian Republic, ) or the Republic of Italy, is a country in Southern Europe. It is located in the middle of the Mediterranean Sea, and its territory largely coincides with the homonymous geographical re ...
, just north of
Rimini Rimini ( , ; rgn, Rémin; la, Ariminum) is a city in the Emilia-Romagna region of northern Italy and capital city of the Province of Rimini. It sprawls along the Adriatic Sea, on the coast between the rivers Marecchia (the ancient ''Ariminu ...
. It was known as Fiumicino until 1933, when it was identified with the ancient river Rubicon, famously crossed by
Julius Caesar Gaius Julius Caesar (; ; 12 July 100 BC – 15 March 44 BC), was a Roman general and statesman. A member of the First Triumvirate, Caesar led the Roman armies in the Gallic Wars before defeating his political rival Pompey in a civil war, and ...
in 49 BC. The river flows for around from the
Apennine Mountains The Apennines or Apennine Mountains (; grc-gre, links=no, Ἀπέννινα ὄρη or Ἀπέννινον ὄρος; la, Appenninus or  – a singular with plural meaning;''Apenninus'' (Greek or ) has the form of an adjective, which wou ...
to the
Adriatic Sea The Adriatic Sea () is a body of water separating the Italian Peninsula from the Balkan Peninsula. The Adriatic is the northernmost arm of the Mediterranean Sea, extending from the Strait of Otranto (where it connects to the Ionian Sea) to t ...
through the south of the
Emilia-Romagna egl, Emigliàn (man) egl, Emiglièna (woman) rgn, Rumagnòl (man) rgn, Rumagnòla (woman) it, Emiliano (man) it, Emiliana (woman) or it, Romagnolo (man) it, Romagnola (woman) , population_note = , population_blank1_title ...
region, between the towns of
Rimini Rimini ( , ; rgn, Rémin; la, Ariminum) is a city in the Emilia-Romagna region of northern Italy and capital city of the Province of Rimini. It sprawls along the Adriatic Sea, on the coast between the rivers Marecchia (the ancient ''Ariminu ...
and
Cesena Cesena (; rgn, Cisêna) is a city and ''comune'' in the Emilia-Romagna region of Italy, served by Autostrada A14, and located near the Apennine Mountains, about from the Adriatic Sea. The total population is 97,137. History Cesena was o ...
.


History

The Latin word comes from the adjective , meaning "red". The river was so named because its waters are colored red by iron deposits in the riverbed. During the
Roman Republic The Roman Republic ( la, Res publica Romana ) was a form of government of Rome and the era of the classical Roman civilization when it was run through public representation of the Roman people. Beginning with the overthrow of the Roman Kin ...
, the Rubicon marked the boundary between the
Roman province The Roman provinces (Latin: ''provincia'', pl. ''provinciae'') were the administrative regions of Ancient Rome outside Roman Italy that were controlled by the Romans under the Roman Republic and later the Roman Empire. Each province was rule ...
of Cisalpine Gaul and
Italy Italy ( it, Italia ), officially the Italian Republic, ) or the Republic of Italy, is a country in Southern Europe. It is located in the middle of the Mediterranean Sea, and its territory largely coincides with the homonymous geographical re ...
proper, controlled directly by Rome and its (allies), to the south. On the north-western side, the border was marked by the river
Arno The Arno is a river in the Tuscany region of Italy. It is the most important river of central Italy after the Tiber. Source and route The river originates on Monte Falterona in the Casentino area of the Apennines, and initially takes a s ...
, a much wider and more important waterway, which flows westward from the Apennine Mountains (the Arno and the Rubicon rise not far from each other) into the
Tyrrhenian Sea The Tyrrhenian Sea (; it, Mar Tirreno , french: Mer Tyrrhénienne , sc, Mare Tirrenu, co, Mari Tirrenu, scn, Mari Tirrenu, nap, Mare Tirreno) is part of the Mediterranean Sea off the western coast of Italy. It is named for the Tyrrhenian pe ...
. In 49 BC, perhaps on January 10,
Julius Caesar Gaius Julius Caesar (; ; 12 July 100 BC – 15 March 44 BC), was a Roman general and statesman. A member of the First Triumvirate, Caesar led the Roman armies in the Gallic Wars before defeating his political rival Pompey in a civil war, and ...
led a single
legion Legion may refer to: Military * Roman legion, the basic military unit of the ancient Roman army * Spanish Legion, an elite military unit within the Spanish Army * Legion of the United States, a reorganization of the United States Army from 179 ...
,
Legio XIII Gemina , in English the 13th Twin Legion was a legion of the Imperial Roman army. It was one of Julius Caesar's key units in Gaul and in the civil war, and was the legion with which he crossed the Rubicon in January, perhaps the 10th, 49 BC. The legi ...
, south over the Rubicon from Cisalpine Gaul to Italy to make his way to Rome. In doing so, he deliberately broke the law limiting his , making armed conflict inevitable.
Suetonius Gaius Suetonius Tranquillus (), commonly referred to as Suetonius ( ; c. AD 69 – after AD 122), was a Roman historian who wrote during the early Imperial era of the Roman Empire. His most important surviving work is a set of biographies ...
depicts Caesar as undecided as he approached the river, and attributes the crossing to a supernatural apparition. It was reported that Caesar dined with
Sallust Gaius Sallustius Crispus, usually anglicised as Sallust (; 86 – ), was a Roman historian and politician from an Italian plebeian family. Probably born at Amiternum in the country of the Sabines, Sallust became during the 50s BC a partisan o ...
,
Hirtius Aulus Hirtius (; – 43 BC) was consul of the Roman Republic in 43 BC and a writer on military subjects. He was killed during his consulship in battle against Mark Antony at the Battle of Mutina. Biography He was a legate of Julius Caesar's sta ...
,
Gaius Oppius Gaius Oppius was an intimate friend of Julius Caesar. He managed the dictator's private affairs during his absence from Rome, and, together with Lucius Cornelius Balbus, exercised considerable influence in the city. According to Suetonius (''Ca ...
, Lucius Cornelius Balbus, and
Servius Sulpicius Rufus Servius Sulpicius Rufus (c. 105 BC – 43 BC), was a Roman orator and jurist. He was consul in 51 BC. Biography Early life He studied rhetoric with Cicero, accompanying him to Rhodes in 78 BC, though Sulpicius decided subsequently to pursue lega ...
on the night after his crossing. According to Suetonius, Caesar uttered the famous phrase ('the
die Die, as a verb, refers to death, the cessation of life. Die may also refer to: Games * Die, singular of dice, small throwable objects used for producing random numbers Manufacturing * Die (integrated circuit), a rectangular piece of a semicondu ...
is cast') upon crossing the Rubicon, signifying that his action was irreversible. The phrase "crossing the Rubicon" is now used to refer to committing irrevocably to a grave course of action, similar to the modern phrase "passing the
point of no return The point of no return (PNR or PONR) is the point beyond which one must continue on one's current course of action because turning back is dangerous, physically impossible or difficult, or prohibitively expensive. The point of no return can be a ...
". The presence of Caesar and his legion in Italy forced
Pompey Gnaeus Pompeius Magnus (; 29 September 106 BC – 28 September 48 BC), known in English as Pompey or Pompey the Great, was a leading Roman general and statesman. He played a significant role in the transformation of ...
, the
consuls A consul is an official representative of the government of one state in the territory of another, normally acting to assist and protect the citizens of the consul's own country, as well as to facilitate trade and friendship between the people ...
, and a large part of the senate to flee Rome. Caesar's victory in the subsequent civil war ensured that he would never be punished for his actions. After Caesar's crossing, the Rubicon was a geographical feature of note until about 42 BC, when
Octavian 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 ...
merged the Province of Cisalpine Gaul into
Italia Italy ( it, Italia ), officially the Italian Republic, ) or the Republic of Italy, is a country in Southern Europe. It is located in the middle of the Mediterranean Sea, and its territory largely coincides with the homonymous geographical re ...
and the river ceased to be the extreme northern border of Italy. The decision robbed the Rubicon of its importance, and the name gradually disappeared from the local toponymy. After the
fall of the Western Roman Empire The fall of the Western Roman Empire (also called the fall of the Roman Empire or the fall of Ancient Rome, Rome) was the loss of central political control in the Western Roman Empire, a process in which the Empire failed to enforce its rul ...
, and during the first centuries of the
Middle Ages In the history of Europe, the Middle Ages or medieval period lasted approximately from the late 5th to the late 15th centuries, similar to the post-classical period of global history. It began with the fall of the Western Roman Empire a ...
, the coastal plain between
Ravenna Ravenna ( , , also ; rgn, Ravèna) is the capital city of the Province of Ravenna, in the Emilia-Romagna region of Northern Italy. It was the capital city of the Western Roman Empire from 408 until its collapse in 476. It then served as the cap ...
and
Rimini Rimini ( , ; rgn, Rémin; la, Ariminum) is a city in the Emilia-Romagna region of northern Italy and capital city of the Province of Rimini. It sprawls along the Adriatic Sea, on the coast between the rivers Marecchia (the ancient ''Ariminu ...
was flooded many times. The Rubicon, like other small rivers of the region, often changed its course during this period. For this reason, and to supply fields with water after the revival of agriculture in the
late Middle Ages The Late Middle Ages or Late Medieval Period was the Periodization, period of European history lasting from AD 1300 to 1500. The Late Middle Ages followed the High Middle Ages and preceded the onset of the early modern period (and in much of Eur ...
, during the 14th and 15th centuries, hydraulic works were built to prevent other floods and to regulate streams. As a result of this work, these rivers started to flow in straight courses, as they do today.


Identification

With the revival during the fifteenth century of interest in the topography of ancient Roman Italy, the matter of identifying the Rubicon in the contemporary landscape became a topic of debate among
Renaissance humanist Renaissance humanism was a revival in the study of classical antiquity, at first in Italy and then spreading across Western Europe in the 14th, 15th, and 16th centuries. During the period, the term ''humanist'' ( it, umanista) referred to teache ...
s. To support the claim of the Pisciatello, a spurious inscription forbidding the passage of an army in the name of the Roman people and Senate, the so-called ''Sanctio'', was placed by a bridge on that river. The
Quattrocento The cultural and artistic events of Italy during the period 1400 to 1499 are collectively referred to as the Quattrocento (, , ) from the Italian word for the number 400, in turn from , which is Italian for the year 1400. The Quattrocento encom ...
humanist
Flavio Biondo Flavio Biondo (Latin Flavius Blondus) (1392 – June 4, 1463) was an Italian Renaissance humanist historian. He was one of the first historians to use a three-period division of history (Ancient, Medieval, Modern) and is known as one of the f ...
was deceived by it; the actual inscription is conserved in the Museo Archeologico, Cesena. As the centuries went by, several rivers of the Adriatic coast between Ravenna and Rimini have at times been said to correspond to the ancient Rubicon. The ''
Via Aemilia The ( it, Via Emilia; en, Aemilian Way) was a trunk Roman road in the north Italian plain, running from ''Ariminum'' (Rimini), on the Adriatic coast, to ''Placentia'' (Piacenza) on the river ''Padus'' ( Po). It was completed in 187 BC. The ' ...
'' (modern SS 9) still follows its original Roman course as it runs between the hills and the plain; it would have been the obvious course to follow as it was the only major Roman road east of the
Apennine Mountains The Apennines or Apennine Mountains (; grc-gre, links=no, Ἀπέννινα ὄρη or Ἀπέννινον ὄρος; la, Appenninus or  – a singular with plural meaning;''Apenninus'' (Greek or ) has the form of an adjective, which wou ...
leading to and from the
Po Valley The Po Valley, Po Plain, Plain of the Po, or Padan Plain ( it, Pianura Padana , or ''Val Padana'') is a major geographical feature of Northern Italy. It extends approximately in an east-west direction, with an area of including its Venetic ex ...
. Attempts to deduce the original course of the Rubicon can be made only by studying written documents and other archaeological evidence such as Roman milestones, which indicate the distance between the ancient river and the nearest Roman towns. The
mile 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 ...
of a
Roman road Roman roads ( la, viae Romanae ; singular: ; meaning "Roman way") were physical infrastructure vital to the maintenance and development of the Roman state, and were built from about 300 BC through the expansion and consolidation of the Roman Re ...
, from which distances were counted, was always the crossing between the
Cardo A cardo (plural ''cardines'') was a north–south street in Ancient Roman cities and military camps as an integral component of city planning. The cardo maximus, or most often the ''cardo'', was the main or central north–south-oriented street ...
and the Decumanus, the two principal streets in every Roman town, running north–south and east–west respectively. In a section of the
Tabula Peutingeriana ' (Latin for "The Peutinger Map"), also referred to as Peutinger's Tabula or Peutinger Table, is an illustrated ' (ancient Roman road map) showing the layout of the '' cursus publicus'', the road network of the Roman Empire. The map is a 13th-ce ...
, an ancient document showing the network of Roman roads, a river in northeastern Italy labeled "''fl. Rubicu''" is shown at a position 12
Roman miles The mile, sometimes the international mile or statute mile to distinguish it from other miles, is a British imperial unit and United States customary unit of distance; both are based on the older English unit of length equal to 5,280 English ...
() north of Rimini along the coastline; this is the distance between Rimini and a place called "Ad Confluentes," drawn west of the Rubicon, on the Via Aemilia. However, the river-bed shape observed in Pisciatello and the Rubicon river in the present day, well below Roman-age soil layers, is likely to indicate that any possible course modification of rivers could have occurred only very close to the coastline, and therefore only slight. Furthermore, the features of the present-day Rubicon river (north–south course, orthogonal to the Via Aemilia) and the Via Aemilia itself (a straight reach before and after the crossing, and a turn just passing by , so marking a possible administrative boundary) are common to typical geographical oriented limits of Roman age, being what made this a clue of actual identification of the present-day Rubicon River with the Fiumicino. In 1933, after various efforts that spanned centuries, the Fiumicino, which crossed the town of Savignano di Romagna (now
Savignano sul Rubicone Savignano sul Rubicone ( rgn, Savgnèn) is a ''comune'' (municipality) in the Province of Forlì-Cesena in the Italian region Emilia-Romagna, located about southeast of Bologna and about southeast of Forlì. The comune takes its name from the Ru ...
), was officially identified as the former Rubicon. Strong evidence supporting this theory came in 1991,Pignotti R., Ravagli P., Donati G., "Rubico quondam finis Italiae", ''Città del Rubicone'', p. 3, October, 1991 when three Italian scholars (Pignotti, Ravagli, and Donati), after a comparison between the
Tabula Peutingeriana ' (Latin for "The Peutinger Map"), also referred to as Peutinger's Tabula or Peutinger Table, is an illustrated ' (ancient Roman road map) showing the layout of the '' cursus publicus'', the road network of the Roman Empire. The map is a 13th-ce ...
and other ancient sources (including
Cicero Marcus Tullius Cicero ( ; ; 3 January 106 BC – 7 December 43 BC) was a Roman statesman, lawyer, scholar, philosopher, and academic skeptic, who tried to uphold optimate principles during the political crises that led to the estab ...
), showed that the distance from Rome to the Rubicon River was 200 Roman miles. Key elements of their work are: * The locality of San Giovanni in Compito (now a western quarter of Savignano) has to be identified with the old ''Ad Confluentes'' (''compitum'' means "road junction", and is synonymous with ''confluentes''). * The distance between ''Ad Confluentes'' and Rome, according to the
Tabula Peutingeriana ' (Latin for "The Peutinger Map"), also referred to as Peutinger's Tabula or Peutinger Table, is an illustrated ' (ancient Roman road map) showing the layout of the '' cursus publicus'', the road network of the Roman Empire. The map is a 13th-ce ...
, is 201 Roman miles. * The distance from today's San Giovanni in Compito and the Fiumicino river is one Roman mile ().


Present

Today there is no visible, material evidence of Caesar's historical passage.
Savignano sul Rubicone Savignano sul Rubicone ( rgn, Savgnèn) is a ''comune'' (municipality) in the Province of Forlì-Cesena in the Italian region Emilia-Romagna, located about southeast of Bologna and about southeast of Forlì. The comune takes its name from the Ru ...
is an industrial town and the river has become one of the most polluted in the
Emilia-Romagna egl, Emigliàn (man) egl, Emiglièna (woman) rgn, Rumagnòl (man) rgn, Rumagnòla (woman) it, Emiliano (man) it, Emiliana (woman) or it, Romagnolo (man) it, Romagnola (woman) , population_note = , population_blank1_title ...
region. Exploitation of underground waters along the upper course of the Rubicon has reduced its flow—it was a minor river even during Roman times ("''parvi Rubiconis ad undas''" as Lucan said, "to the waves of hetiny Rubicon")—and has since lost its natural route, except in its upper course, between low and woody hills.


References


External links

* *
Livius.org: Rubico

Rubicon in dictionary
* {{Authority control Rivers of Italy Roman Italy Julius Caesar Rivers of Emilia-Romagna Adriatic Italian coast basins