The Battle of Pharsalus was the decisive battle of
Caesar's Civil War
Caesar's civil war (49–45 BC) was one of the last politico-military conflicts of the Roman Republic before its reorganization into the Roman Empire. It began as a series of political and military confrontations between Gaius Julius Caesar ...
fought on 9 August 48 BC near
Pharsalus in central Greece.
Julius Caesar and his allies formed up opposite the army of 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 Kingd ...
under the command of
Pompey. Pompey had the backing of a majority of Roman
senators and his army significantly outnumbered the veteran Caesarian legions.
Pressured by his officers, Pompey reluctantly engaged in battle and suffered an overwhelming defeat, ultimately fleeing the camp and his men, disguised as an ordinary citizen. Eventually making his way to
Egypt
Egypt ( ar, مصر , ), officially the Arab Republic of Egypt, is a transcontinental country spanning the northeast corner of Africa and southwest corner of Asia via a land bridge formed by the Sinai Peninsula. It is bordered by the Med ...
, he was assassinated upon his arrival at the order of
Ptolemy XIII.
Prelude
Following the start of the
Civil War
A civil war or intrastate war is a war between organized groups within the same state (or country).
The aim of one side may be to take control of the country or a region, to achieve independence for a region, or to change government polic ...
, Caesar had captured Rome, forced Pompey and his allies to withdraw from Italy, and defeated Pompey's legates in Spain. In the campaign season for 48 BC, Caesar crossed the Adriatic and advanced on Dyrrachium. There, he besieged it, but was defeated.
Caesar then withdrew east into Thessaly, partly to relieve one of his legates from attack by
Metellus Scipio's forces arriving from Syria. He
besieged Gomphi after it resisted him. Pompey pursued, seeking to spare Italy from invasion by concluding the war on Greek soil, to prevent Caesar from defeating Metellus Scipio's forces arriving from Syria, and under pressure from his overconfident allies who accused him of prolonging the war to extend his command.
Date
The decisive battle took place on 9 August 48 BC according to the
Republican calendar. According to the
proleptic Julian calendar however, the date was either 29 June (according to Le Verrier's chronological reconstruction) or possibly 7 June (according to Drumann/Groebe).
Location
The location of the battlefield was for a long time the subject of controversy among scholars. Caesar himself, in his
Commentarii de Bello Civili, mentions few place-names; and although the battle is called after Pharsalos by modern authors, four ancient writers – the author of the ''Bellum Alexandrinum'' (48.1),
Frontinus (''Strategemata'' 2.3.22),
Eutropius (20), and
Orosius (6.15.27) – place it specifically at ''Palae''pharsalus ("Old" Pharsalus).
Strabo in his ''Geographica'' (''Γεωγραφικά'') mentions both old and new Pharsaloi, and notes that the Thetideion, the temple to
Thetis south of Scotoussa, was near both. In 198 BC, in the
Second Macedonian War,
Philip V of Macedon sacked Palaepharsalos (
Livy
Titus Livius (; 59 BC – AD 17), known in English as Livy ( ), was a Roman historian. He wrote a monumental history of Rome and the Roman people, titled , covering the period from the earliest legends of Rome before the traditional founding in ...
, ''
Ab Urbe Condita
''Ab urbe condita'' ( 'from the founding of the City'), or ''anno urbis conditae'' (; 'in the year since the city's founding'), abbreviated as AUC or AVC, expresses a date in years since 753 BC, the traditional founding of Rome. It is an ex ...
'' 32.13.9), but left new Pharsalos untouched. These two details perhaps imply that the two cities were not close neighbours. Many scholars, therefore, unsure of the site of Palaepharsalos, followed
Appian
Appian of Alexandria (; grc-gre, Ἀππιανὸς Ἀλεξανδρεύς ''Appianòs Alexandreús''; la, Appianus Alexandrinus; ) was a Ancient Greeks, Greek historian with Ancient Rome, Roman citizenship who flourished during the reigns of ...
(2.75) and located the battle of 48 BC south of the Enipeus or close to Pharsalos (today's
Pharsala). Among the scholars arguing for the south side are Béquignon (1928), Bruère (1951), and Gwatkin (1957).
An increasing number of scholars, however, have argued for a location on the north side of the river. These include Perrin (1885), Holmes (1908),
Lucas (1921), Rambaud (1955), Pelling (1973), Morgan (1983), and Sheppard (2006). John D. Morgan in his definitive "Palae-pharsalus – the Battle and the Town", shows that Palaepharsalus cannot have been at Palaiokastro, as Béquignon thought (a site abandoned c. 500 BC), nor the hill of Fatih-Dzami within the walls of Pharsalus itself, as Kromayer (1903, 1931) and Gwatkin thought; and Morgan argues that it is probably also not the hill of Khtouri (Koutouri), some 7 miles north-west of Pharsalus on the south bank of the Enipeus, as Lucas and Holmes thought, although that remains a possibility. However, Morgan believes it is most likely to have been the hill just east of the village of Krini (formerly Driskoli) very close to the ancient highway from Larisa to Pharsalus. This site is some north of Pharsalus, and three miles north of the river Enipeus, and not only has remains dating back to neolithic times but also signs of habitation in the 1st century BC and later. The identification seems to be confirmed by the location of a place misspelled "Palfari" or "Falaphari" shown on a medieval route map of the road just north of Pharsalus. Morgan places Pompey's camp a mile to the west of Krini, just north of the village of Avra (formerly Sarikayia), and Caesar's camp some four miles to the east-south-east of Pompey's. According to this reconstruction, therefore, the battle took place not between Pharsalus and the river, as Appian wrote, but between Old Pharsalus and the river.
An interesting side-note on Palaepharsalus is that it was sometimes identified in ancient sources with
Phthia, the home of
Achilles
In Greek mythology, Achilles ( ) or Achilleus ( grc-gre, Ἀχιλλεύς) was a hero of the Trojan War, the greatest of all the Greek warriors, and the central character of Homer's '' Iliad''. He was the son of the Nereid Thetis and Pe ...
. Near Old and New Pharsalus was a
"Thetideion", or temple dedicated to Thetis, the mother of Achilles. However, Phthia, the kingdom of Achilles and his father
Peleus, is more usually identified with the lower valley of the
Spercheios river, much further south.
Name of the battle
Although it is often called the Battle of Pharsalus by modern historians, this name was rarely used in the ancient sources. Caesar merely calls it the ''proelium in Thessaliā'' ("battle in Thessalia");
Marcus Tullius Cicero and
Hirtius call it the ''Pharsālicum proelium'' ("Pharsalic battle") or ''pugna Pharsālia'' ("Pharsalian battle"), and similar expressions are also used in other authors. But Hirtius (if he is the author of the
de Bello Alexandrino) also refers to the battle as having taken place at ''Palaepharsalus'', and this name also occurs in
Strabo,
Frontinus,
Eutropius, and
Orosius.
Lucan in his poem about the Civil War regularly uses the name ''Pharsālia'', and this term is also used by the epitomiser of Livy and by Tacitus.
[Morgan (1983), p. 27.] The only ancient sources to refer to the battle as being at Pharsalus are a certain calendar known as the
Fasti Amiternini and the Greek authors
Plutarch
Plutarch (; grc-gre, Πλούταρχος, ''Ploútarchos''; ; – after AD 119) was a Greek Middle Platonist philosopher, historian, biographer, essayist, and priest at the Temple of Apollo in Delphi. He is known primarily for his ...
,
Appian
Appian of Alexandria (; grc-gre, Ἀππιανὸς Ἀλεξανδρεύς ''Appianòs Alexandreús''; la, Appianus Alexandrinus; ) was a Ancient Greeks, Greek historian with Ancient Rome, Roman citizenship who flourished during the reigns of ...
, and
Polyaenus.
It has therefore been argued by some scholars that "Pharsalia" would be a more accurate name for the battle than Pharsalus.
Opposing armies
The total number of soldiers on each side is unknown because ancient accounts of the battle focused primarily on giving the numbers of Italian legionaries only, regarding allied non-citizen contingents as inferior and inconsequential. According to Caesar, his own army included 22,000 Roman
legionaries distributed throughout 80
cohorts
Cohort or cohortes may refer to:
* Cohort (educational group), a group of students working together through the same academic curriculum
* Cohort (floating point), a set of different encodings of the same numerical value
* Cohort (military unit), ...
(8 legions), alongside 1,000
Gallic and Germanic cavalry. All of Caesar's legions were understrength; some only had about a thousand men at the time of Pharsalus, due partly to losses at Dyrrhachium and partly to Caesar's wish to rapidly advance with a picked body as opposed to a ponderous movement with a large army. Another source adds that he had recruited Greek light infantry from
Dolopia,
Acarnania and
Aetolia; these numbered no more than a few thousand. Caesar, Appian and Plutarch give Pompey an army of 45,000 Roman infantry. Osorius describes Pompey as having 88 cohorts of Roman infantry, which at full strength would come to 44,000 men, while Brunt and Wylie estimated Pompey's Roman infantry as being as 38,000 men, and Greenhalgh said they contained a maximum of 36,000.
It was in his auxiliary troops and in particular his cavalry, all of which vastly outnumbered Caesar's own, that Pompey had his greatest advantage. He seems to have had at his disposal anywhere between 5,000 and 7,000 cavalry, and thousands of archers,
sling
sling may refer to:
Places
*Sling, Anglesey, Wales
*Sling, Gloucestershire, England, a small village in the Forest of Dean
People with the name
* Otto Šling (1912–1952), repressed Czech communist functionary
Arts, entertainment, and media
* ...
ers and light infantrymen in general. These all formed a remarkably diverse group, including Gallic and Germanic horsemen alongside all polyglot peoples of the east – namely
Greeks
The Greeks or Hellenes (; el, Έλληνες, ''Éllines'' ) are an ethnic group and nation indigenous to the Eastern Mediterranean and the Black Sea regions, namely Greece, Greek Cypriots, Cyprus, Greeks in Albania, Albania, Greeks in Italy, ...
,
Thracians
The Thracians (; grc, Θρᾷκες ''Thrāikes''; la, Thraci) were an Indo-European speaking people who inhabited large parts of Eastern and Southeastern Europe in ancient history.. "The Thracians were an Indo-European people who occupied ...
, and
Anatolians
The Anatolians were Indo-European-speaking peoples of the Anatolian Peninsula in present-day Turkey
Turkey ( tr, Türkiye ), officially the Republic of Türkiye ( tr, Türkiye Cumhuriyeti, links=no ), is a list of transcontinental cou ...
from the Balkans and
Syrians
Syrians ( ar, سُورِيُّون, ''Sūriyyīn'') are an Eastern Mediterranean ethnic group indigenous to the Levant. They share common Levantine Semitic roots. The cultural and linguistic heritage of the Syrian people is a blend of both indi ...
,
Phoenicians and
Jews
Jews ( he, יְהוּדִים, , ) or Jewish people are an ethnoreligious group and nation originating from the Israelites Israelite origins and kingdom: "The first act in the long drama of Jewish history is the age of the Israelites""T ...
from the Levant. To this heterogeneous force Pompey added horsemen conscripted from his own slaves. Many of the foreigners were serving under their own rulers, for more than a dozen
despots and petty kings under Roman influence in the east were Pompey's personal clients and some elected to attend in person, or send proxies.
Caesarian legions
Caesar had the following legions with him:
* the VI legion (later called Ferrata) veterans of his Gallic Wars
* the VII legion (later called Claudia Pia Fidelis) veterans of his Gallic Wars
* the VIII legion (later called Augusta) veterans of his Gallic Wars
* the IX legion (later called Hispania) veterans of his Gallic Wars
* the X legion (Equestris, later called Gemina) veterans of his Gallic Wars
* the XI legion (later called Paterna and Claudia Pia Fidelis, the same title as the seventh) veterans of his Gallic Wars
* the XII legion (later called Fulminata) veterans of his Gallic Wars
* the XIII legion (later also called Gemina, the 'twin' to the tenth) veterans of his Gallic Wars
* the XXVII legion, a legion constituted in the summer of 49 BC
The bulk of Caesar's army at Pharsalus was made up of his veterans from the Gallic Wars; very experienced, battle-hardened troops who were absolutely devoted to their commander.
Deployment

The two generals deployed their legions in the traditional three lines (''
triplex acies''), with Pompey's right and Caesar's left flanks resting on river
Enipeus. As the stream provided enough protection to that side, Pompey moved almost all of his cavalry, archers, and slingers to the left, to make the most of their numerical strength. Only a small force of 500–600
Pontic
Pontic, from the Greek ''pontos'' (, ), or "sea", may refer to:
The Black Sea Places
* The Pontic colonies, on its northern shores
* Pontus (region), a region on its southern shores
* The Pontic–Caspian steppe, steppelands stretching from n ...
cavalry and some
Cappadocia
Cappadocia or Capadocia (; tr, Kapadokya), is a historical region in Central Anatolia, Turkey. It largely is in the provinces Nevşehir, Kayseri, Aksaray, Kırşehir, Sivas and Niğde.
According to Herodotus, in the time of the Ionian Re ...
n light infantry was placed on his right flank. Pompey stationed his strongest legions in the center and wings of his infantry line, and dispersed some 2,000
re-enlisted veterans throughout the entire line in order to inspire the less experienced. The Pompeian cohorts were arrayed in an unusually thick formation, 10 men deep: their task was just to tie down the enemy foot while Pompey's cavalry, his key to victory, swept through Caesar's flank and rear. The column of legions was divided under command of three subordinates, with
Lentulus in charge of the left,
Scipio of the center and
Ahenobarbus the right.
Labienus was entrusted with command of the cavalry charge, while Pompey himself took up a position behind the left wing in order to oversee the course of the battle.
Caesar also deployed his men in three lines, but, being outnumbered, had to thin his ranks to a depth of only six men, in order to match the frontage presented by Pompey. His left flank, resting on the Enipeus River, consisted of his
battle worn IX
th legion supplemented by the VIII
th legion, these were commanded by
Mark Antony
Marcus Antonius (14 January 1 August 30 BC), commonly known in English as Mark Antony, was a Roman politician and general who played a critical role in the transformation of the Roman Republic from a constitutional republic into the ...
. The VI, XII, XI and XIII formed the centre and were commanded by
Domitius, then came the VII and upon his right he placed his favored X
th legion, giving
Sulla
Lucius Cornelius Sulla Felix (; 138–78 BC), commonly known as Sulla, was a Roman general and statesman. He won the first large-scale civil war in Roman history and became the first man of the Republic to seize power through force.
Sulla ha ...
command of this flank – Caesar himself took his stand on the right, across from Pompey. Upon seeing the disposition of Pompey's army Caesar grew discomforted, and further thinned his third line in order to form a fourth line on his right: this to counter the onslaught of the enemy cavalry, which he knew his numerically inferior cavalry could not withstand. He gave this new line detailed instructions for the role they would play, hinting that upon them would rest the fortunes of the day, and gave strict orders to his third line not to charge until specifically ordered.
Battle
There was significant distance between the two armies, according to Caesar. Pompey ordered his men not to charge, but to wait until Caesar's legions came into close quarters; Pompey's adviser
Gaius Triarius believed that Caesar's infantry would be fatigued and fall into disorder if they were forced to cover twice the expected distance of a battle march. Also, stationary troops were expected to be able to defend better against
pila throws. Seeing that Pompey's army was not advancing, Caesar's infantry under
Mark Antony
Marcus Antonius (14 January 1 August 30 BC), commonly known in English as Mark Antony, was a Roman politician and general who played a critical role in the transformation of the Roman Republic from a constitutional republic into the ...
and
Gnaeus Domitius Calvinus started the advance. As Caesar's men neared throwing distance, without orders, they stopped to rest and regroup before continuing the charge; Pompey's right and centre line held as the two armies collided.
As Pompey's infantry fought,
Labienus ordered the Pompeian cavalry on his left flank to attack Caesar's cavalry; as expected they successfully pushed back Caesar's cavalry. Caesar then revealed his hidden fourth line of infantry and surprised Pompey's cavalry charge; Caesar's men were ordered to leap up and use their
pila to thrust at Pompey's cavalry instead of throwing them. Pompey's cavalry panicked and suffered hundreds of casualties, as Caesar's cavalry came about and charged after them. After failing to reform, the rest of Pompey's cavalry retreated to the hills, leaving the left wing of his legions exposed to the hidden troops as Caesar's cavalry wheeled around their flank. Caesar then ordered in his third line, containing his most battle-hardened veterans, to attack. This broke Pompey's left wing troops, who fled the battlefield.
After routing Pompey's cavalry, Caesar threw in his last line of reservesa move which at this point meant that the battle was more or less decided. Pompey lost the will to fight as he watched both cavalry and legions under his command break formation and flee from battle, and he retreated to his camp, leaving the rest of his troops at the centre and right flank to their own devices. He ordered the garrisoned auxiliaries to defend the camp as he gathered his family, loaded up gold, and threw off his general's cloak to make a quick escape. As the rest of Pompey's army were left confused, Caesar urged his men to end the day by routing the rest of Pompey's troops and capturing the Pompeian camp. They complied with his wishes; after finishing off the remains of Pompey's men, they furiously attacked the camp walls. The Thracians and the other auxiliaries who were left in the Pompeian camp, in total seven cohorts, defended bravely, but were not able to fend off the assault.
Caesar had won his greatest victory, claiming to have only lost about 200 soldiers and 30 centurions and assigning the Optimate losses to be 60,000 men . These numbers seem suspiciously exaggerated with
Appian
Appian of Alexandria (; grc-gre, Ἀππιανὸς Ἀλεξανδρεύς ''Appianòs Alexandreús''; la, Appianus Alexandrinus; ) was a Ancient Greeks, Greek historian with Ancient Rome, Roman citizenship who flourished during the reigns of ...
suggesting the Caesarean losses to be as many as 1,200 men and the Pompeian losses to be 6,000. In his history of the war, Caesar would praise his own men's discipline and experience, and remembered each of his
centurions by name. He also questioned Pompey's decision not to charge.
Aftermath
Pompey, despairing of the defeat, fled with his advisors overseas to Mytilene and thence to Cilicia where he held a council of war; at the same time, Cato and supporters at Dyrrachium attempted first to hand over command to
Marcus Tullius Cicero, who refused, deciding instead to return to Italy. They then regrouped at Corcyra and went thence to Libya. Others, including
Marcus Junius Brutus sought Caesar's pardon, travelling over marshlands to Larissa where he was then welcomed graciously by Caesar in his camp. Pompey's council of war decided to flee to Egypt, which had in the previous year supplied him with military aid.
In the aftermath of the battle, Caesar captured Pompey's camp and burned Pompey's correspondence. He then announced that he would forgive all who asked for mercy. Pompeian naval forces in the Adriatic and Italy mostly withdrew or surrendered.
Hearing of Pompey's flight to Egypt, Caesar remained in hot pursuit, first landing in Asia and reaching Alexandria on 2 October 48 BC, where he learnt of Pompey's murder and then was embroiled in a dynastic dispute between Ptolemy XIII and Cleopatra.
Importance
Paul K. Davis wrote that "Caesar's victory took him to the pinnacle of power, effectively ending the Republic." The battle itself did not end the civil war but it was decisive and gave Caesar a much needed boost in legitimacy. Until then much of the Roman world outside Italy supported Pompey and his allies due to the extensive list of clients he held in all corners of the Republic. After Pompey's defeat former allies began to align themselves with Caesar as some came to believe the gods favored him, while for others it was simple self-preservation. The ancients took great stock in success as a sign of favoritism by the gods. This is especially true of success in the face of almost certain defeat – as Caesar experienced at Pharsalus. This allowed Caesar to parlay this single victory into a huge network of willing clients to better secure his hold over power and force the Optimates into near exile in search for allies to continue the fight against Caesar.
In popular culture
The battle gives its name to the following artistic, geographical, and business concerns:
* ''
Pharsalia'', a poem by
Lucan
*
Pharsalia, New York, U.S.
*
Pharsalia Technologies
Pharsalia Technologies, Inc. was founded in December 1999, located in Roswell, Georgia, as an emerging company developing network infrastructure products for the Internet market. Led by a team of over 28 software engineers, Pharsalia focused on d ...
, Inc.
In
Alexander Dumas' ''
The Three Musketeers'', the author makes reference to Caesar's purported order that his men try to cut the faces of their opponents – their vanity supposedly being of more value to them than their lives.
In Mankiewicz's 1963 film ''
Cleopatra'', the immediate aftermath of Pharsalus is used as an opening scene to set the action in motion.
Notes
Citations
References
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*
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*
*
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*
Further reading
* Bruère, Richard Treat, (1951)
"Palaepharsalus, Pharsalus, Pharsalia" ''Classical Philology'', Vol. 46, No. 2 (Apr., 1951), pp. 111–115.
* Gwatkin, William E. (1956)
"Some Reflections on the Battle of Pharsalus" ''Transactions and Proceedings of the American Philological Association'', Vol. 87.
* James, Steven (2016)
"48 BC: The Battle of Pharsalus" Non-peer-reviewed publication.
* Lucas, Frank Laurence (1921)
"The Battlefield of Pharsalos" ''Annual of the British School at Athens'', No. XXIV, 1919–21.
* Nordling, John G. (2006)
"Caesar's Pre-Battle Speech at Pharsalus (B.C. 3.85.4): ''Ridiculum Acri Fortius ... Secat Res''" ''The Classical Journal'', Vol. 101, No. 2 (Dec. - Jan., 2005/2006), pp. 183–189.
* Pelling, C. B. R. (1973)
"Pharsalus" ''Historia: Zeitschrift für Alte Geschichte''. Bd. 22, H. 2 (2nd Qtr., 1973), pp. 249–259.
* Perrin, B. (1885)
"Pharsalia, Pharsalus, Palaepharsalus" ''The American Journal of Philology'', Vol. 6, No. 2 (1885), pp. 170–189.
* Postgate, J. P. (1905)
"Pharsalia Nostra" ''The Classical Review'', Vol. 19, No. 5 (Jun., 1905), pp. 257–260.
* Rambaud, Michel (1955)
"Le Soleil de Pharsale" ''Historia: Zeitschrift für Alte Geschichte '', Vol.3, No.4.
* Searle, Arthur (1907)
"Note on the Battle of Pharsalus" ''Harvard Studies in Classical Philology'', Vol. 18 (1907), pp. 213–218.
External links
Caesar's account of the battle
{{DEFAULTSORT:Pharsalus, Battle of
48 BC
40s BC conflicts
1st-century BC battles
1st century BC in Greece
Battles in ancient Thessaly
Battles involving the Roman Republic
Battles of Caesar's civil war
Roman civil wars
Macedonia (Roman province)