Caesar's civil war
Encyclopedia
The Great Roman Civil War (49–45 BC), also known as Caesar's Civil War, was one of the last politico-military conflicts in the Roman Republic
Roman Republic
The Roman Republic was the period of the ancient Roman civilization where the government operated as a republic. It began with the overthrow of the Roman monarchy, traditionally dated around 508 BC, and its replacement by a government headed by two consuls, elected annually by the citizens and...

 before the establishment of the Roman Empire
Roman Empire
The Roman Empire was the post-Republican period of the ancient Roman civilization, characterised by an autocratic form of government and large territorial holdings in Europe and around the Mediterranean....

. It began as a series of political and military confrontations, between Julius Caesar
Julius Caesar
Gaius Julius Caesar was a Roman general and statesman and a distinguished writer of Latin prose. He played a critical role in the gradual transformation of the Roman Republic into the Roman Empire....

 (100–44 BC), his political supporters (broadly known as Populares
Populares
Populares were aristocratic leaders in the late Roman Republic who relied on the people's assemblies and tribunate to acquire political power. They are regarded in modern scholarship as in opposition to the optimates, who are identified with the conservative interests of a senatorial elite...

), and his legions
Roman legion
A Roman legion normally indicates the basic ancient Roman army unit recruited specifically from Roman citizens. The organization of legions varied greatly over time but they were typically composed of perhaps 5,000 soldiers, divided into maniples and later into "cohorts"...

, against the Optimates
Optimates
The optimates were the traditionalist majority of the late Roman Republic. They wished to limit the power of the popular assemblies and the Tribunes of the Plebs, and to extend the power of the Senate, which was viewed as more dedicated to the interests of the aristocrats who held the reins of power...

 (or Boni), the politically conservative, socially traditionalist faction of the Roman Senate
Roman Senate
The Senate of the Roman Republic was a political institution in the ancient Roman Republic, however, it was not an elected body, but one whose members were appointed by the consuls, and later by the censors. After a magistrate served his term in office, it usually was followed with automatic...

, who were supported by Pompey
Pompey
Gnaeus Pompeius Magnus, also known as Pompey or Pompey the Great , was a military and political leader of the late Roman Republic...

 (106–48 BC) and his legions.

After a four-year-long (49–45 BC) politico-military struggle, fought in Italy
Italia (Roman province)
Italia was the name of the Italian peninsula of the Roman Empire.-Under the Republic and Augustan organization:During the Republic and the first centuries of the empire, Italia was not a province, but rather the territory of the city of Rome, thus having a special status: for example, military...

, Greece
Ancient Greece
Ancient Greece is a civilization belonging to a period of Greek history that lasted from the Archaic period of the 8th to 6th centuries BC to the end of antiquity. Immediately following this period was the beginning of the Early Middle Ages and the Byzantine era. Included in Ancient Greece is the...

, Egypt
Ancient Egypt
Ancient Egypt was an ancient civilization of Northeastern Africa, concentrated along the lower reaches of the Nile River in what is now the modern country of Egypt. Egyptian civilization coalesced around 3150 BC with the political unification of Upper and Lower Egypt under the first pharaoh...

, Africa, and Hispania
Hispania
Another theory holds that the name derives from Ezpanna, the Basque word for "border" or "edge", thus meaning the farthest area or place. Isidore of Sevilla considered Hispania derived from Hispalis....

, Caesar defeated the last of the Optimates in the Battle of Munda
Battle of Munda
The Battle of Munda took place on March 17, 45 BC in the plains of Munda, modern southern Spain. This was the last battle of Julius Caesar's civil war against the republican armies of the Optimate leaders...

 and became Dictator perpetuus (Perpetual Dictator) of Rome. The changes to Roman government concomitant to the war mostly eliminated the political traditions of the Roman Republic (509–27 BC) and led to the Roman Empire (27 BC–AD 476).

Pre-war politico–military situation

Caesar's Civil War resulted from the long political subversion of the Roman Government's institutions, begun with the career of Tiberius Gracchus
Tiberius Gracchus
Tiberius Sempronius Gracchus was a Roman Populares politician of the 2nd century BC and brother of Gaius Gracchus. As a plebeian tribune, his reforms of agrarian legislation caused political turmoil in the Republic. These reforms threatened the holdings of rich landowners in Italy...

, continuing with the Marian reforms
Marian reforms
The Marian reforms of 107 BC were a group of military reforms initiated by Gaius Marius, a statesman and general of the Roman republic.- Roman army before the Marian reforms :...

 of the legions, the bloody dictatorship
Roman dictator
In the Roman Republic, the dictator , was an extraordinary magistrate with the absolute authority to perform tasks beyond the authority of the ordinary magistrate . The office of dictator was a legal innovation originally named Magister Populi , i.e...

 of Lucius Cornelius Sulla
Lucius Cornelius Sulla
Lucius Cornelius Sulla Felix , known commonly as Sulla, was a Roman general and statesman. He had the rare distinction of holding the office of consul twice, as well as that of dictator...

, and completed by the First Triumvirate
First Triumvirate
The First Triumvirate was the political alliance of Gaius Julius Caesar, Marcus Licinius Crassus, and Gnaeus Pompeius Magnus. Unlike the Second Triumvirate, the First Triumvirate had no official status whatsoever; its overwhelming power in the Roman Republic was strictly unofficial influence, and...

 over Rome
Ancient Rome
Ancient Rome was a thriving civilization that grew on the Italian Peninsula as early as the 8th century BC. Located along the Mediterranean Sea and centered on the city of Rome, it expanded to one of the largest empires in the ancient world....

.

The First Triumvirate (so denominated by Cicero
Cicero
Marcus Tullius Cicero , was a Roman philosopher, statesman, lawyer, political theorist, and Roman constitutionalist. He came from a wealthy municipal family of the equestrian order, and is widely considered one of Rome's greatest orators and prose stylists.He introduced the Romans to the chief...

), comprising Julius Caesar, Crassus, and Pompey, ascended to power with Caesar's election as consul
Roman consul
A consul served in the highest elected political office of the Roman Republic.Each year, two consuls were elected together, to serve for a one-year term. Each consul was given veto power over his colleague and the officials would alternate each month...

, in 59 BC. The First Triumvirate was unofficial, a political alliance the substance of which was Pompey's military might, Caesar's political influence, and Crassus' money. The alliance was further consolidated by Pompey's marriage to Julia, daughter of Caesar, in 59 BC. At the conclusion of Caesar's first consulship, the Senate (rather than granting him a provincial governorship) tasked him with watching over the Roman forests. This job, specially-created by his Senate enemies, was meant to occupy him without giving him command of armies, or garnering him wealth and fame. Caesar, with the help of Pompey and Crassus, evaded the Senate's decrees by legislation passed through the popular assemblies. By these acts, Caesar was promoted to Roman Governor
Roman governor
A Roman governor was an official either elected or appointed to be the chief administrator of Roman law throughout one or more of the many provinces constituting the Roman Empire...

 of Illyricum
Illyricum (Roman province)
The Roman province of Illyricum or Illyris Romana or Illyris Barbara or Illyria Barbara replaced most of the region of Illyria. It stretched from the Drilon river in modern north Albania to Istria in the west and to the Sava river in the north. Salona functioned as its capital...

 and Cisalpine Gaul
Cisalpine Gaul
Cisalpine Gaul, in Latin: Gallia Cisalpina or Citerior, also called Gallia Togata, was a Roman province until 41 BC when it was merged into Roman Italy.It bore the name Gallia, because the great body of its inhabitants, after the expulsion of the Etruscans, consisted of Gauls or Celts...

. Transalpine Gaul (southern France) was added later. The various governorships gave Caesar command of an army of four legions. The term of his proconsulship, and thus his immunity from prosecution, was set at five years, rather than the customary one year.

In 52 BC, at the First Triumvirate's end, the Roman Senate
Roman Senate
The Senate of the Roman Republic was a political institution in the ancient Roman Republic, however, it was not an elected body, but one whose members were appointed by the consuls, and later by the censors. After a magistrate served his term in office, it usually was followed with automatic...

 supported Pompey as sole consul; meanwhile, Caesar had become a military hero and champion of the people. Knowing he hoped to become consul when his governorship expired, the Senate, politically fearful of him, ordered he resign command of his army. In December of 50 BC, Caesar wrote to the Senate agreeing to resign his military command if Pompey followed suit. Offended, the Senate demanded he immediately disband his army, or be declared an enemy of the people: an illegal political bill, for he was entitled to keep his army until his term expired. A secondary reason for Caesar's immediate want for another consulship was delaying the inevitable senatorial prosecutions awaiting him upon retirement as governor of Illyricum and Gaul. These potential prosecutions were based upon alleged irregularities occurred in his consulship and war crimes committed in his Gallic campaigns. Moreover, Caesar loyalists, the tribune
Tribune
Tribune was a title shared by elected officials in the Roman Republic. Tribunes had the power to convene the Plebeian Council and to act as its president, which also gave them the right to propose legislation before it. They were sacrosanct, in the sense that any assault on their person was...

s Mark Antony
Mark Antony
Marcus Antonius , known in English as Mark Antony, was a Roman politician and general. As a military commander and administrator, he was an important supporter and loyal friend of his mother's cousin Julius Caesar...

 and Quintus Cassius Longinus
Quintus Cassius Longinus
Quintus Cassius Longinus, the brother or cousin of Cassius , was a governor in Hispania for Caesar....

, vetoed the bill, and were quickly expelled from the Senate. They then joined Caesar, who had assembled his army, whom he asked for military support against the Senate; agreeing, his army called for action.

In 50 BC, at his Proconsular term's expiry, the Pompey-led Senate ordered Caesar's return to Rome and the disbanding of his army, and forbade his standing for election in absentia for a second consulship; because of that, Caesar thought he would be prosecuted and rendered politically marginal if he entered Rome without consular immunity or his army; to wit, Pompey accused him of insubordination and treason.

Crossing the Rubicon

On 10 January 49 BC, leading one legion
Roman legion
A Roman legion normally indicates the basic ancient Roman army unit recruited specifically from Roman citizens. The organization of legions varied greatly over time but they were typically composed of perhaps 5,000 soldiers, divided into maniples and later into "cohorts"...

, the Legio XIII Gemina
Legio XIII Gemina
Legio tertia decima Gemina was one of the most prominent Roman legions. It was one of Julius Caesar's key units in Gaul and in the civil war, and was the legion with which he famously crossed the Rubicon on January 10, 49 BC. The legion appears to have still been in existence in the fifth century...

, General Julius Caesar crossed the Rubicon
Rubicon
The Rubicon is a shallow river in northeastern Italy, about 80 kilometres long, running from the Apennine Mountains to the Adriatic Sea through the southern Emilia-Romagna region, between the towns of Rimini and Cesena. The Latin word rubico comes from the adjective "rubeus", meaning "red"...

 River, the boundary between the Cisalpine Gaul province, to the north, and Italy proper, to the south, a legally-proscribed action forbidden to any army-leading general. The proscription protected the Roman Republic
Roman Republic
The Roman Republic was the period of the ancient Roman civilization where the government operated as a republic. It began with the overthrow of the Roman monarchy, traditionally dated around 508 BC, and its replacement by a government headed by two consuls, elected annually by the citizens and...

 from a coup d'état
Coup d'état
A coup d'état state, literally: strike/blow of state)—also known as a coup, putsch, and overthrow—is the sudden, extrajudicial deposition of a government, usually by a small group of the existing state establishment—typically the military—to replace the deposed government with another body; either...

(internal military threat); thus, Caesar's military action began a civil war. This act of war on the Roman Republic by Caesar led to widespread approval amongst the Roman civilians, who believed him a hero. The historical record differs about which decisive comment Caesar made on crossing the Rubicon: one report is Alea iacta est
Alea iacta est
Alea iacta est is a Latin phrase attributed by Suetonius to Julius Caesar on January 10, 49 BC as he led his army across the River Rubicon in Northern Italy...

(usually translated as "The die is cast").

March on Rome and the early Hispanian campaign

Caesar's March on Rome
Ancient Rome
Ancient Rome was a thriving civilization that grew on the Italian Peninsula as early as the 8th century BC. Located along the Mediterranean Sea and centered on the city of Rome, it expanded to one of the largest empires in the ancient world....

 was a triumphal progress; yet, the Senate, ignorant of Caesar's being armed only with a single legion, feared the worst and supported Pompey, who, on grasping the Republic's endangerment, said: "Rome cannot be defended", and escaped to Capua
Capua
Capua is a city and comune in the province of Caserta, Campania, southern Italy, situated 25 km north of Naples, on the northeastern edge of the Campanian plain. Ancient Capua was situated where Santa Maria Capua Vetere is now...

 with his politicians, the aristocratic Optimates
Optimates
The optimates were the traditionalist majority of the late Roman Republic. They wished to limit the power of the popular assemblies and the Tribunes of the Plebs, and to extend the power of the Senate, which was viewed as more dedicated to the interests of the aristocrats who held the reins of power...

and the regnant consuls; Cicero
Cicero
Marcus Tullius Cicero , was a Roman philosopher, statesman, lawyer, political theorist, and Roman constitutionalist. He came from a wealthy municipal family of the equestrian order, and is widely considered one of Rome's greatest orators and prose stylists.He introduced the Romans to the chief...

 later characterised Pompey's "outward sign of weakness" as allowing Caesar's politico-military consolidation to achieve Roman dictatorship.

Despite having retreated, at his central-Italian bivouac, Pompey was armed with two legions, some 11,500 soldiers (he earlier had ordered Caesar return to Italy from Gaul), and some hastily-levied Italian troops commanded by Lucius Domitius Ahenobarbus
Lucius Domitius Ahenobarbus
Lucius Domitius Ahenobarbus was the son and only child of consul Gnaeus Domitius Ahenobarbus and Aemilia Lepida. His mother was a paternal relative of the triumvir Marcus Aemilius Lepidus...

 (Domitius). As Caesar progressed southwards, so Pompey retreated southwards, to Brundisium, from where he repeatedly ordered Domitius north to combat and stop Caesar's Roman march (then south-bound, along the eastern coast); his inaction—repeated refusal of Pompey's combat orders—gave Caesar the initiative to attack and defeat Domitius's Pompeian armies in bivouac. In the event, Pompey escaped to Brundisium, there awaiting sea transport for his legions, to Epirus
Epirus
The name Epirus, from the Greek "Ήπειρος" meaning continent may refer to:-Geographical:* Epirus - a historical and geographical region of the southwestern Balkans, straddling modern Greece and Albania...

, in the Republic's eastern Greek provinces, expecting his influence to yield money and armies for a maritime blockade of Italy proper. Meanwhile, the aristocrats (the Optimates
Optimates
The optimates were the traditionalist majority of the late Roman Republic. They wished to limit the power of the popular assemblies and the Tribunes of the Plebs, and to extend the power of the Senate, which was viewed as more dedicated to the interests of the aristocrats who held the reins of power...

)—including Metellus Scipio and Cato the Younger
Cato the Younger
Marcus Porcius Cato Uticensis , commonly known as Cato the Younger to distinguish him from his great-grandfather , was a politician and statesman in the late Roman Republic, and a follower of the Stoic philosophy...

—joined Pompey there, whilst leaving a rear guard at Capua.

Caesar pursued Pompey to Brundisium, expecting restoration of their alliance of ten years prior; to wit, throughout the Great Roman Civil War's early stages, Caesar frequently proposed to Pompey that they, both generals, sheathe their swords. Pompey refused, legalistically arguing that Caesar was his subordinate and thus was obligated to cease campaigning and dismiss his armies before any negotiation. As Consul of Rome, Pompey commanded legitimacy, whereas Caesar's military crossing of the Rubicon River frontier de jure rendered him a de facto enemy of the Senate and People of Rome. Nevertheless, in March of 49 BC, Pompey escaped Caesar at Brundisium, fleeing by sea to Epirus, in Roman Greece.

Advantaging himself of Pompey's absence from the Italian mainland, Caesar effected an astonishingly fast 27-day, north-bound forced march to destroy, in the Battle of Ilerda
Battle of Ilerda
The Battle of Ilerda took place in June 49 BC between the forces of Julius Caesar and the Spanish army of Pompey the Great, led by his legates Lucius Afranius and Marcus Petreius...

, Hispania
Hispania
Another theory holds that the name derives from Ezpanna, the Basque word for "border" or "edge", thus meaning the farthest area or place. Isidore of Sevilla considered Hispania derived from Hispalis....

's politically leader-less Pompeian army, commanded by the legates, Lucius Afranius
Lucius Afranius (consul)
Lucius Afranius was an ancient Roman legatus and client of Pompey the Great. He served with Pompey during his Iberian campaigns against Sertorius in the late 70s BC, and remained in his service right through to the Civil War. He died after the Battle of Thapsus in 46 BC.-Early career:Lucius...

 (Afranius) and Marcus Petreius
Marcus Petreius
Marcus Petreius was a Roman politician and general. He cornered and killed the notorious rebel Catiline at Pistoria.-Career:...

 (Petreius), afterwards pacifying Roman Hispania; in campaign, the Caesarian forces—six legions, 3,000 cavalry (Gallic campaign veterans), and Caesar's 900-horse personal bodyguard—suffered 70 men killed in action, while the Pompeian forces lost 200 men killed and 600 wounded. Returned to Rome in December of 49 BC, Caesar was dictator for eleven days, tenure sufficient to win him Consular election, afterwards, he renewed pursuit of Pompey, then in Roman Greece.

Greek and African campaigns

At Brundisium, Caesar assembled an army of some 15,000 soldiers, and crossed the Strait of Otranto
Strait of Otranto
The Strait of Otranto connects the Adriatic Sea with the Ionian Sea and separates Italy from Albania. Its width at Punta Palascìa, east of Salento is less than . The strait is named after the Italian city of Otranto.- History :...

 to Epirus
Epirus
The name Epirus, from the Greek "Ήπειρος" meaning continent may refer to:-Geographical:* Epirus - a historical and geographical region of the southwestern Balkans, straddling modern Greece and Albania...

, in Greece. In that time, Pompey considered three courses of action: (i) alliance with the King of Parthia
Parthia
Parthia is a region of north-eastern Iran, best known for having been the political and cultural base of the Arsacid dynasty, rulers of the Parthian Empire....

, an erstwhile ally, far to the east; (ii) invade Italy with his naval superiority; and (iii) confronting Julius Caesar in decisive battle. A Parthian alliance was unfeasible, a Roman general fighting Roman legions with foreign troops was craven; and the military risk of an Italian invasion was politically unsavoury, because, the Italians (who thirty years earlier had rebelled against Rome) might rise against him; thus, on councilor's advice, Pompey decided to fight Julius Caesar in decisive battle.

Moreover, Caesar's pursuing him to Illyrium, across the Adriatic Sea, decided the matter, and, on 10 July 48 BC, Pompey fought him in the Battle of Dyrrhachium
Battle of Dyrrhachium
Battle of Dyrrhachium is the name of three battles fought in, or close to, the ancient city of Dyrrachium:*Battle of Dyrrhachium , fought during Caesar's civil war*Battle of Dyrrhachium , fought between the Bulgarians and the Byzantine Empire...

, costing Caesar 1,000 veteran legionnaires and a retreat. Disbelieving that his army had bested Caesar's legions, Pompey misinterpreted the retreat as a feint to a trap, and refused to give chase for the decisive, definitive coup de grâce, thus losing the initiative, and the chance to quickly conclude Caesar's Civil War; meanwhile, Caesar retreated southwards. Near Pharsalus, Caesar pitched a strategic bivouac, and Pompey attacked, yet, despite his much larger army, was conclusively defeated by Caesar's troops. A major reason for Pompey's defeat was a miscommunication among front cavalry horsemen.

Egyptian dynastic struggle

Pompey fled to Egypt
Egypt
Egypt , officially the Arab Republic of Egypt, Arabic: , is a country mainly in North Africa, with the Sinai Peninsula forming a land bridge in Southwest Asia. Egypt is thus a transcontinental country, and a major power in Africa, the Mediterranean Basin, the Middle East and the Muslim world...

, where he was murdered by an officer of King Ptolemy XIII. In Rome in the meantime, Caesar was appointed dictator
Roman dictator
In the Roman Republic, the dictator , was an extraordinary magistrate with the absolute authority to perform tasks beyond the authority of the ordinary magistrate . The office of dictator was a legal innovation originally named Magister Populi , i.e...

, with Mark Antony as his Master of the Horse; Caesar resigned this dictatorate after eleven days and was elected to a second term as consul with Publius Servilius Vatia Isauricus as his colleague. He pursued the Pompeian army to Alexandria
Alexandria
Alexandria is the second-largest city of Egypt, with a population of 4.1 million, extending about along the coast of the Mediterranean Sea in the north central part of the country; it is also the largest city lying directly on the Mediterranean coast. It is Egypt's largest seaport, serving...

, where they camped and became involved with the Alexandrine civil war between Ptolemy and his sister, wife, and co-regnant queen, the Pharaoh
Pharaoh
Pharaoh is a title used in many modern discussions of the ancient Egyptian rulers of all periods. The title originates in the term "pr-aa" which means "great house" and describes the royal palace...

 Cleopatra VII
Cleopatra VII of Egypt
Cleopatra VII Philopator was the last pharaoh of Ancient Egypt.She was a member of the Ptolemaic dynasty, a family of Greek origin that ruled Egypt after Alexander the Great's death during the Hellenistic period...

. Perhaps as a result of Ptolemy's role in Pompey's murder, Caesar sided with Cleopatra; he is reported to have wept at the sight of Pompey's head, which was offered to him by Ptolemy's chamberlain Pothinus
Pothinus
Pothinus , a eunuch, was regent for Pharaoh Ptolemy XIII of the Ptolemaic dynasty of Ancient Egypt. He is most remembered for turning Ptolemy against his sister and co-ruler Cleopatra VII, thus starting a civil war, and for having Pompey decapitated and presenting the severed head to Julius...

 as a gift. In any event, Caesar defeated the Ptolemaic forces
Battle of the Nile (47 BC)
The Battle of the Nile in 47 BC saw the combined Roman–Egyptian armies of Julius Caesar and Cleopatra VII defeat those of the rival Queen Arsinoe IV and King Ptolemy XIII and secure the throne of Egypt....

 and installed Cleopatra as ruler, with whom he fathered his only known biological son, Ptolemy XV Caesar
Caesarion
Ptolemy XV Philopator Philometor Caesar , better known by the nicknames Caesarion and Ptolemy Caesar , was the last king of the Ptolemaic dynasty of Egypt, who reigned jointly with his mother Cleopatra VII of Egypt, from September 2, 44 BC...

, better known as "Caesarion". Caesar and Cleopatra never married, due to Roman law that prohibited a marriage with a non-Roman citizen.

War against Pharnaces

After spending the first months of 47 BC in Egypt, he went to Syria
History of Syria
The history of Syria:*Prehistory and Ancient Near East: see Pre-history of the Southern Levant, Fertile Crescent, Ebla, Mitanni*Antiquity: see Syro-Hittite states, Greater Syria, Roman Syria...

, and then to Pontus
Pontus
Pontus or Pontos is a historical Greek designation for a region on the southern coast of the Black Sea, located in modern-day northeastern Turkey. The name was applied to the coastal region in antiquity by the Greeks who colonized the area, and derived from the Greek name of the Black Sea: Πόντος...

 to deal with Pharnaces II
Pharnaces II of Pontus
Pharnaces II of Pontus, also known as Pharnaces II was a prince, then King of Pontus and the Bosporan until his death. He was a monarch of Persian and Greek Macedonian ancestry. Pharnaces II was the youngest son and child born to King Mithridates VI of Pontus from his first wife, his sister Queen...

, a client king of Pompey's who had taken advantage of the Romans being distracted by their civil war to oppose the Roman-friendly Deiotarus
Deiotarus
Deiotarus of Galatia was a Chief Tetrarch of the Tolistobogii at Western Galatia, Asia Minor, and a King of Galatia at Anatolia, Asia Minor. He was considered one of the most adept of Celtic kings, ruling the three tribes of Celtic Galatia from his fortress in Blucium...

 and make himself the ruler of Colchis
Colchis
In ancient geography, Colchis or Kolkhis was an ancient Georgian state kingdom and region in Western Georgia, which played an important role in the ethnic and cultural formation of the Georgian nation.The Kingdom of Colchis contributed significantly to the development of medieval Georgian...

 and lesser Armenia
Armenia
Armenia , officially the Republic of Armenia , is a landlocked mountainous country in the Caucasus region of Eurasia...

. At Nicopolis
Nicopolis
Nicopolis — or Actia Nicopolis — was an ancient city of Epirus, founded 31 BC by Octavian in memory of his victory over Antony and Cleopatra at Actium the previous year. It was later the capital of Epirus Vetus...

 he had defeated what little Roman opposition Caesar's Asian lieutenant Gnaeus Domitius Calvinus could muster. He had also taken the city of Amisus, which was a Roman ally, made all the boys eunuch
Eunuch
A eunuch is a person born male most commonly castrated, typically early enough in his life for this change to have major hormonal consequences...

s and sold the inhabitants to slave traders. After this show of strength against the Romans, Pharnaces drew back to suppress revolt in his new conquests.

Nevertheless, the extremely rapid approach of Caesar in person forced Pharnaces to turn his attention back to the Romans. At first, recognizing the threat, he made offers of submission, with the sole object of gaining time until Caesar's attention fell elsewhere; Caesar's speed brought war quickly and battle took place near Zela
Battle of Zela
The Battle of Zela was a battle fought in 47 BC between Julius Caesar and Pharnaces II of The Kingdom of Pontus.-Prelude:After the defeat of the Ptolemaic forces at the Battle of the Nile, Caesar left Egypt and travelled through Syria, Cilicia and Cappadocia to fight Pharnaces, son of Mithridates...

 (modern Zile in Turkey), where Pharnaces was routed with just a small detachment of cavalry. Caesar's victory was so swift and complete that, in a letter to a friend in Rome, he famously said of the short war, "Veni, vidi, vici
Veni, vidi, vici
"Veni, vidi, vici" is a Latin sentence reportedly written by Julius Caesar in 47 BC as a comment on his short war with Pharnaces II of Pontus in the city of Zela ....

" ("I came, I saw, I conquered"): indeed, for his Pontic triumph, that may well have been the label displayed above the spoils.

Pharnaces himself fled quickly back to the Bosporus, where he managed to assemble a small force of Scythia
Scythia
In antiquity, Scythian or Scyths were terms used by the Greeks to refer to certain Iranian groups of horse-riding nomadic pastoralists who dwelt on the Pontic-Caspian steppe...

n and Sarmatian troops, with which he was able to gain control of a few cities; however, a former governor of his, Asandar, attacked his forces and killed him. The historian Appian
Appian
Appian of Alexandria was a Roman historian of Greek ethnicity who flourished during the reigns of Trajan, Hadrian, and Antoninus Pius.He was born ca. 95 in Alexandria. He tells us that, after having filled the chief offices in the province of Egypt, he went to Rome ca. 120, where he practised as...

 states that Pharnaces died in battle; Dio Cassius
Dio Cassius
Lucius Cassius Dio Cocceianus , known in English as Cassius Dio, Dio Cassius, or Dio was a Roman consul and a noted historian writing in Greek...

 says Pharnaces was captured and then killed.

Later campaign in Africa and the war on Cato

Caesar returned to Rome to deal with several mutinous legions. While Caesar had been in Egypt installing Cleopatra as Queen, four of his veteran legions encamped outside of Rome under the command of Mark Antony. The legions were waiting for their discharges and the bonus pay Caesar had promised them before the battle of Pharsalus. As Caesar lingered in Egypt, the situation quickly deteriorated. Antony lost control of the troops and they began looting estates south of the capital. Several delegations of diplomats were dispatched to try to quell the mutiny. Nothing worked and the mutineers continued to call for their discharges and back pay. After several months, Caesar finally arrived to address the legions in person. Caesar knew he needed these legions to deal with Pompey's supporters in north Africa, who had mustered 14 legions of their own. Caesar also knew that he did not have the funds to give the soldiers their back pay, much less the money needed to induce them to reenlist for the north African campaign.

When Caesar approached the speaker's dais, a hush fell over the mutinous soldiers. Most were embarrassed by their role in the mutiny in Caesar's presence. Caesar asked the troops what they wanted with his cold voice. Ashamed to demand money, the men began to call out for their discharge. Caesar bluntly addressed them as "citizens" instead of "soldiers," a tacit indication that they had already discharged themselves by virtue of their disloyalty. He went on to tell them that that they would all be discharged immediately. He said he would pay them the money he owed them after he won the north African campaign with other legions. The soldiers were shocked. They had been through 15 years of war with Caesar and they had become fiercely loyal to him in the process. It had never occurred to them that Caesar did not need them. The soldiers' resistance collapsed. They crowded the dais and begged to be taken to north Africa. Caesar feigned indignation and then allowed himself to be won over. When he announced that he would suffer to bring them along, a huge cheer arose from the assembled troops. Through this reverse psychology
Reverse psychology
Reverse psychology is a technique involving the advocacy of a belief or behavior that is opposite to the one desired, with the expectation that this approach will encourage the subject of the persuasion to do what actually is desired: the opposite of what is suggested...

, Caesar reenlisted four enthusiastic veteran legions to invade north Africa without spending a single sesterce.

In the same year he set out for Africa
Africa
Africa is the world's second largest and second most populous continent, after Asia. At about 30.2 million km² including adjacent islands, it covers 6% of the Earth's total surface area and 20.4% of the total land area...

, where the followers of Pompey had fled, to end their opposition led by Cato
Cato the Younger
Marcus Porcius Cato Uticensis , commonly known as Cato the Younger to distinguish him from his great-grandfather , was a politician and statesman in the late Roman Republic, and a follower of the Stoic philosophy...

.

Caesar quickly gained a significant victory at Thapsus
Battle of Thapsus
The Battle of Thapsus took place on April 6, 46 BC near Thapsus . The Republican forces of the Optimates, led by Quintus Caecillius Metellus Scipio, clashed with the veteran forces loyal to Julius Caesar.-Prelude:...

 in 46 BC over the forces of Metellus Scipio (who was drowned) and Cato the Younger and Juba (who both committed suicide).

Second Hispanian campaign and the end of the war

Nevertheless, Pompey's sons Gnaeus Pompeius
Gnaeus Pompeius
Gnaeus Pompeius should not be confused with his father, Gnaeus Pompeius Magnus, known as "Pompey the Great."Gnaeus Pompeius , also known as Pompey the Younger , was a Roman politician and general from the late Republic .Gnaeus Pompeius was the elder son of Pompey the Great Gnaeus Pompeius should...

 and Sextus Pompeius
Sextus Pompeius
Sextus Pompeius Magnus Pius, in English Sextus Pompey , was a Roman general from the late Republic . He was the last focus of opposition to the Second Triumvirate...

, together with Titus Labienus
Titus Labienus
Titus Atius Labienus was a professional Roman soldier in the late Roman Republic. He served as Tribune of the Plebs in 63 BC, and is remembered as one of Julius Caesar's lieutenants, mentioned frequently in the accounts of his military campaigns...

 (Caesar's former propraetorian legate (legatus
Legatus
A legatus was a general in the Roman army, equivalent to a modern general officer. Being of senatorial rank, his immediate superior was the dux, and he outranked all military tribunes...

 propraetore
) and second in command in the Gallic War) escaped to Hispania. Caesar gave chase and defeated the last remnants of opposition in the Munda
Battle of Munda
The Battle of Munda took place on March 17, 45 BC in the plains of Munda, modern southern Spain. This was the last battle of Julius Caesar's civil war against the republican armies of the Optimate leaders...

 in March 45 BC. During this time, Caesar was elected to his third and fourth terms as consul in 46 BC (with Marcus Aemilius Lepidus
Marcus Aemilius Lepidus (triumvir)
Marcus Aemilius Lepidus , was a Roman patrician who rose to become a member of the Second Triumvirate and Pontifex Maximus. His father, Marcus Aemilius Lepidus, had been involved in a rebellion against the Roman Republic.Lepidus was among Julius Caesar's greatest supporters...

) and 45 BC (without colleague).

Chronology

  • 49 BC
    • January 1: The Roman Senate
      Roman Senate
      The Senate of the Roman Republic was a political institution in the ancient Roman Republic, however, it was not an elected body, but one whose members were appointed by the consuls, and later by the censors. After a magistrate served his term in office, it usually was followed with automatic...

       receives a proposal from Julius Caesar
      Julius Caesar
      Gaius Julius Caesar was a Roman general and statesman and a distinguished writer of Latin prose. He played a critical role in the gradual transformation of the Roman Republic into the Roman Empire....

       that he and Pompey
      Pompey
      Gnaeus Pompeius Magnus, also known as Pompey or Pompey the Great , was a military and political leader of the late Roman Republic...

       should lay down their commands simultaneously. The Senate responds that Caesar must immediately surrender his command.
    • January 10: Julius Caesar
      Julius Caesar
      Gaius Julius Caesar was a Roman general and statesman and a distinguished writer of Latin prose. He played a critical role in the gradual transformation of the Roman Republic into the Roman Empire....

       leads his army across the Rubicon
      Rubicon
      The Rubicon is a shallow river in northeastern Italy, about 80 kilometres long, running from the Apennine Mountains to the Adriatic Sea through the southern Emilia-Romagna region, between the towns of Rimini and Cesena. The Latin word rubico comes from the adjective "rubeus", meaning "red"...

      , which separates his jurisdiction (Cisalpine Gaul) from that of the Senate (Italy), and thus initiates a civil war.
    • February, Pompey's flight to Epirus
      Epirus
      The name Epirus, from the Greek "Ήπειρος" meaning continent may refer to:-Geographical:* Epirus - a historical and geographical region of the southwestern Balkans, straddling modern Greece and Albania...

       (in Western Greece) with most of the Senate
      Roman Senate
      The Senate of the Roman Republic was a political institution in the ancient Roman Republic, however, it was not an elected body, but one whose members were appointed by the consuls, and later by the censors. After a magistrate served his term in office, it usually was followed with automatic...

    • March 9, Caesar advanced against Pompeian forces in Hispania
      Hispania
      Another theory holds that the name derives from Ezpanna, the Basque word for "border" or "edge", thus meaning the farthest area or place. Isidore of Sevilla considered Hispania derived from Hispalis....

    • April 19, Caesar's siege of Massilia against the Pompeian Lucius Domitius Ahenobarbus
      Lucius Domitius Ahenobarbus (consul 54 BC)
      Lucius Domitius Ahenobarbus, consul 54 BC, was an enemy of Julius Caesar and a strong supporter of the aristocratic party in the late Roman Republic.He is first mentioned in 70 BC by Cicero as a witness against Verres...

      , later the siege was conducted by Caesarian Gaius Trebonius
    • June, Caesar's arrival in Hispania
      Hispania
      Another theory holds that the name derives from Ezpanna, the Basque word for "border" or "edge", thus meaning the farthest area or place. Isidore of Sevilla considered Hispania derived from Hispalis....

      , who was able to seized the Pyrenees
      Pyrenees
      The Pyrenees is a range of mountains in southwest Europe that forms a natural border between France and Spain...

       passes against the Pompeian L. Afranius
      Lucius Afranius (consul)
      Lucius Afranius was an ancient Roman legatus and client of Pompey the Great. He served with Pompey during his Iberian campaigns against Sertorius in the late 70s BC, and remained in his service right through to the Civil War. He died after the Battle of Thapsus in 46 BC.-Early career:Lucius...

       and M. Petreius
      Marcus Petreius
      Marcus Petreius was a Roman politician and general. He cornered and killed the notorious rebel Catiline at Pistoria.-Career:...

      .
    • July 30, Caesar surrounded Afranius and Petreius's army in Ilerda
    • August 2, Pompeians in Ilerda surrendered to Caesar
    • August 24: Caesar's general Gaius Scribonius Curio
      Gaius Scribonius Curio
      Gaius Scribonius Curio was the name of a father and son who lived in the late Roman Republic.-Father:Gaius Scribonius Curio was a Roman statesman and orator. He was nicknamed Burbulieus for the way he moved his body while speaking...

      , is defeated in North Africa by the Pompeians under Attius Varus
      Publius Attius Varus
      Publius Attius Varus was the Roman governor of Africa during the civil war between Julius Caesar and Pompeius Magnus . He declared war against Caesar, and initially fought and defeated Gaius Scribonius Curio, who was sent against him in 49 BC.-Political career:Varus held the office of praetor no...

       and King Juba I of Numidia
      Juba I of Numidia
      Juba I of Numidia was a King of Numidia. He was the son and successor to King of Numidia Hiempsal II.- Family :...

       (whom he defeated earlier in the Battle of Utica
      Battle of Utica (49 BC)
      The Battle of Utica was fought between Julius Caesar's general Gaius Scribonius Curio and Numidian cavalry and foot soldiers sent by King Juba I of Numidia and commanded by Publius Attius Varus...

      , in the Battle of the Bagradas River
      Battle of the Bagradas River (49 BC)
      The Battle of the Bagradas River occurred on August 24 and was fought between Julius Caesar's general Gaius Scribonius Curio and the Pompeian Republicans under Publius Attius Varus and King Juba I of Numidia...

      ), and commits suicide.
    • September Decimus Brutus, a Caesarian, defeated the combined Pompeian-Massilian naval forces in the naval Battle of Massilia
      Siege of Massilia
      The Siege and naval Battle of Massilia was an episode of Caesar's civil war, fought in 49 BC.Lucius Domitius Ahenobarbus had become proconsul of Gaul and was sent to gain control of Massilia in order to oppose Caesar...

      , while the Caesarian fleet in the Adriatic was defeated near Curicta (Krk
      Krk
      Krk is a Croatian island in the northern Adriatic Sea, located near Rijeka in the Bay of Kvarner and part of the Primorje-Gorski Kotar county....

      )
    • September 6, Massilia surrendered to Caesar, coming back from Hispania
    • October, Caesar appointed Dictator in Rome; presides over his own election as consul and resigns after eleven days
  • 48 BC:
    • January 4, Caesar landed at Dyrrhachium (Durazzo)
    • March, Antony joined Caesar
    • April, Battle of Dyrrhachium
      Battle of Dyrrhachium (48 BC)
      The Battle of Dyrrachium on 10 July 48 BC, was a battle of Caesar's Civil War in the area of the city of Dyrrachium . It was fought between Julius Caesar and the army led by Gnaeus Pompey with the backing of the majority of the Roman Senate. The battle was indecisive but is regarded as a victory...

    • July 10: Battle of Dyrrhachium
      Battle of Dyrrhachium
      Battle of Dyrrhachium is the name of three battles fought in, or close to, the ancient city of Dyrrachium:*Battle of Dyrrhachium , fought during Caesar's civil war*Battle of Dyrrhachium , fought between the Bulgarians and the Byzantine Empire...

      , Julius Caesar barely avoids a catastrophic defeat to Pompey
      Pompey
      Gnaeus Pompeius Magnus, also known as Pompey or Pompey the Great , was a military and political leader of the late Roman Republic...

       in Macedon
      Macedon
      Macedonia or Macedon was an ancient kingdom, centered in the northeastern part of the Greek peninsula, bordered by Epirus to the west, Paeonia to the north, the region of Thrace to the east and Thessaly to the south....

      ia, he retreats to Thessaly
      Thessaly
      Thessaly is a traditional geographical region and an administrative region of Greece, comprising most of the ancient region of the same name. Before the Greek Dark Ages, Thessaly was known as Aeolia, and appears thus in Homer's Odyssey....

      .
    • August 9: Battle of Pharsalus
      Battle of Pharsalus
      The Battle of Pharsalus was a decisive battle of Caesar's Civil War. On 9 August 48 BC at Pharsalus in central Greece, Gaius Julius Caesar and his allies formed up opposite the army of the republic under the command of Gnaeus Pompeius Magnus...

      : Julius Caesar
      Julius Caesar
      Gaius Julius Caesar was a Roman general and statesman and a distinguished writer of Latin prose. He played a critical role in the gradual transformation of the Roman Republic into the Roman Empire....

       decisively defeats Pompey
      Pompey
      Gnaeus Pompeius Magnus, also known as Pompey or Pompey the Great , was a military and political leader of the late Roman Republic...

       at Pharsalus and Pompey flees to Egypt
      Ptolemaic Egypt
      Ptolemaic Egypt began when Ptolemy I Soter invaded Egypt and declared himself Pharaoh of Egypt in 305 BC and ended with the death of queen Cleopatra VII of Egypt and the Roman conquest in 30 BC. The Ptolemaic Kingdom was a powerful Hellenistic state, extending from southern Syria in the east, to...

      .
    • Julius Caesar is named consul
      Consul
      Consul was the highest elected office of the Roman Republic and an appointive office under the Empire. The title was also used in other city states and also revived in modern states, notably in the First French Republic...

       for a period of five years
    • September 28, Caesar learned that Pompey was assassinated.
    • Siege of Alexandria
      Alexandria
      Alexandria is the second-largest city of Egypt, with a population of 4.1 million, extending about along the coast of the Mediterranean Sea in the north central part of the country; it is also the largest city lying directly on the Mediterranean coast. It is Egypt's largest seaport, serving...

    • October, Pharnaces
      Pharnaces II of Pontus
      Pharnaces II of Pontus, also known as Pharnaces II was a prince, then King of Pontus and the Bosporan until his death. He was a monarch of Persian and Greek Macedonian ancestry. Pharnaces II was the youngest son and child born to King Mithridates VI of Pontus from his first wife, his sister Queen...

      , King of Bosporus
      Bosporan Kingdom
      The Bosporan Kingdom or the Kingdom of the Cimmerian Bosporus was an ancient state, located in eastern Crimea and the Taman Peninsula on the shores of the Cimmerian Bosporus...

       defeated the Caesarian Gnaeus Domitius Calvinus in the Battle of Nicopolis (or Nikopol)
    • December: Battle in Alexandria
      Alexandria
      Alexandria is the second-largest city of Egypt, with a population of 4.1 million, extending about along the coast of the Mediterranean Sea in the north central part of the country; it is also the largest city lying directly on the Mediterranean coast. It is Egypt's largest seaport, serving...

      , Egypt
      Egypt
      Egypt , officially the Arab Republic of Egypt, Arabic: , is a country mainly in North Africa, with the Sinai Peninsula forming a land bridge in Southwest Asia. Egypt is thus a transcontinental country, and a major power in Africa, the Mediterranean Basin, the Middle East and the Muslim world...

       between the forces of Caesar and his ally Cleopatra VII of Egypt
      Cleopatra VII of Egypt
      Cleopatra VII Philopator was the last pharaoh of Ancient Egypt.She was a member of the Ptolemaic dynasty, a family of Greek origin that ruled Egypt after Alexander the Great's death during the Hellenistic period...

       and those of rival King Ptolemy XIII of Egypt and Queen Arsinoe IV. The latter two are defeated and flee the city; Cleopatra becomes queen of Egypt. During the battle part of the Library of Alexandria
      Library of Alexandria
      The Royal Library of Alexandria, or Ancient Library of Alexandria, in Alexandria, Egypt, was the largest and most significant great library of the ancient world. It flourished under the patronage of the Ptolemaic dynasty and functioned as a major center of scholarship from its construction in the...

       catches fire and is burned down.
    • Caesar is named Dicator for one year.
  • 47 BC
    • February: Caesar and his ally Cleopatra defeat the forces of the rival Egyptian
      Ptolemaic Egypt
      Ptolemaic Egypt began when Ptolemy I Soter invaded Egypt and declared himself Pharaoh of Egypt in 305 BC and ended with the death of queen Cleopatra VII of Egypt and the Roman conquest in 30 BC. The Ptolemaic Kingdom was a powerful Hellenistic state, extending from southern Syria in the east, to...

       Queen Arsinoe IV in the Battle of the Nile
      Battle of the Nile (47 BC)
      The Battle of the Nile in 47 BC saw the combined Roman–Egyptian armies of Julius Caesar and Cleopatra VII defeat those of the rival Queen Arsinoe IV and King Ptolemy XIII and secure the throne of Egypt....

      , Ptolemy was killed, Caesar then relieved his besieged forces in Alexandria
      Alexandria
      Alexandria is the second-largest city of Egypt, with a population of 4.1 million, extending about along the coast of the Mediterranean Sea in the north central part of the country; it is also the largest city lying directly on the Mediterranean coast. It is Egypt's largest seaport, serving...

    • May: Caesar defeated Pharnaces II of Pontus
      Pharnaces II of Pontus
      Pharnaces II of Pontus, also known as Pharnaces II was a prince, then King of Pontus and the Bosporan until his death. He was a monarch of Persian and Greek Macedonian ancestry. Pharnaces II was the youngest son and child born to King Mithridates VI of Pontus from his first wife, his sister Queen...

      , king of the Bosporus in the Battle of Zela
      Battle of Zela
      The Battle of Zela was a battle fought in 47 BC between Julius Caesar and Pharnaces II of The Kingdom of Pontus.-Prelude:After the defeat of the Ptolemaic forces at the Battle of the Nile, Caesar left Egypt and travelled through Syria, Cilicia and Cappadocia to fight Pharnaces, son of Mithridates...

      . (This is the war that Caesar tersely described veni, vidi, vici.)
    • Pharaoh
      Pharaoh
      Pharaoh is a title used in many modern discussions of the ancient Egyptian rulers of all periods. The title originates in the term "pr-aa" which means "great house" and describes the royal palace...

       Cleopatra VII of Egypt
      Cleopatra VII of Egypt
      Cleopatra VII Philopator was the last pharaoh of Ancient Egypt.She was a member of the Ptolemaic dynasty, a family of Greek origin that ruled Egypt after Alexander the Great's death during the Hellenistic period...

       promotes her younger brother Ptolemy XIV of Egypt
      Ptolemy XIV of Egypt
      Ptolemy XIV , was a son of Ptolemy XII of Egypt and one of the last members of the Ptolemaic dynasty of Egypt. Following the death of his older brother Ptolemy XIII of Egypt on January 13, 47 BC, he was proclaimed Pharaoh and co-ruler by their older sister and remaining Pharaoh, Cleopatra VII of...

       to co-ruler.
    • August, Caesar quelled a mutiny of his veterans in Rome.
    • October, Caesar's invasion of Africa
      Africa
      Africa is the world's second largest and second most populous continent, after Asia. At about 30.2 million km² including adjacent islands, it covers 6% of the Earth's total surface area and 20.4% of the total land area...

      , against Metellus Scipio and Labienus, Caesar's former lieutenant in Gaul
      Gaul
      Gaul was a region of Western Europe during the Iron Age and Roman era, encompassing present day France, Luxembourg and Belgium, most of Switzerland, the western part of Northern Italy, as well as the parts of the Netherlands and Germany on the left bank of the Rhine. The Gauls were the speakers of...

  • 46 BC
    • January 4: Caesar narrowly defeats his former second in command Titus Labienus
      Titus Labienus
      Titus Atius Labienus was a professional Roman soldier in the late Roman Republic. He served as Tribune of the Plebs in 63 BC, and is remembered as one of Julius Caesar's lieutenants, mentioned frequently in the accounts of his military campaigns...

       in the Battle of Ruspina
      Battle of Ruspina
      The Battle of Ruspina was fought on January 4, 46 BC in the Roman Republic, between the Republican forces of the Optimates and forces loyal to Julius Caesar...

      ; nearly 1/3 of Caesar's army is killed.
    • February 6: Caesar defeats the combined army of Pompeian
      Pompey
      Gnaeus Pompeius Magnus, also known as Pompey or Pompey the Great , was a military and political leader of the late Roman Republic...

       followers and Numidians under Metellus Scipio and Juba
      Juba I of Numidia
      Juba I of Numidia was a King of Numidia. He was the son and successor to King of Numidia Hiempsal II.- Family :...

       in the Battle of Thapsus
      Battle of Thapsus
      The Battle of Thapsus took place on April 6, 46 BC near Thapsus . The Republican forces of the Optimates, led by Quintus Caecillius Metellus Scipio, clashed with the veteran forces loyal to Julius Caesar.-Prelude:...

      . Cato commits suicide. Afterwards, he is accorded the office of Dictator for the next ten years.
    • November: Caesar leaves for Farther Hispania
      Hispania
      Another theory holds that the name derives from Ezpanna, the Basque word for "border" or "edge", thus meaning the farthest area or place. Isidore of Sevilla considered Hispania derived from Hispalis....

       to deal with a fresh outbreak of resistance.
    • Caesar, in his role as Pontifex Maximus
      Pontifex Maximus
      The Pontifex Maximus was the high priest of the College of Pontiffs in ancient Rome. This was the most important position in the ancient Roman religion, open only to patricians until 254 BC, when a plebeian first occupied this post...

      , reforms the Roman calendar to create the Julian calendar
      Julian calendar
      The Julian calendar began in 45 BC as a reform of the Roman calendar by Julius Caesar. It was chosen after consultation with the astronomer Sosigenes of Alexandria and was probably designed to approximate the tropical year .The Julian calendar has a regular year of 365 days divided into 12 months...

      . The transitional year is extended to 445 days to synchronize the new calendar and the seasonal cycle. The Julian Calendar would remain the standard in the western world
      Western world
      The Western world, also known as the West and the Occident , is a term referring to the countries of Western Europe , the countries of the Americas, as well all countries of Northern and Central Europe, Australia and New Zealand...

       for over 1600 years, until superseded by the Gregorian Calendar
      Gregorian calendar
      The Gregorian calendar, also known as the Western calendar, or Christian calendar, is the internationally accepted civil calendar. It was introduced by Pope Gregory XIII, after whom the calendar was named, by a decree signed on 24 February 1582, a papal bull known by its opening words Inter...

       in 1582.
    • Caesar appoints his great-nephew Gaius Octavius his heir.
  • 45 BC
    • January 1: Julian calendar
      Julian calendar
      The Julian calendar began in 45 BC as a reform of the Roman calendar by Julius Caesar. It was chosen after consultation with the astronomer Sosigenes of Alexandria and was probably designed to approximate the tropical year .The Julian calendar has a regular year of 365 days divided into 12 months...

       goes into effect
    • March 17: In his last victory, Caesar defeats the Pompeian
      Pompey
      Gnaeus Pompeius Magnus, also known as Pompey or Pompey the Great , was a military and political leader of the late Roman Republic...

       forces of Titus Labienus
      Titus Labienus
      Titus Atius Labienus was a professional Roman soldier in the late Roman Republic. He served as Tribune of the Plebs in 63 BC, and is remembered as one of Julius Caesar's lieutenants, mentioned frequently in the accounts of his military campaigns...

       and Pompey the younger in the Battle of Munda
      Battle of Munda
      The Battle of Munda took place on March 17, 45 BC in the plains of Munda, modern southern Spain. This was the last battle of Julius Caesar's civil war against the republican armies of the Optimate leaders...

      . Pompey the younger was executed, and Labienus died in battle, but Sextus Pompey escaped to take command of the remnants of the Pompeian fleet.
    • The veterans of Caesar's Legions Legio XIII Gemina
      Legio XIII Gemina
      Legio tertia decima Gemina was one of the most prominent Roman legions. It was one of Julius Caesar's key units in Gaul and in the civil war, and was the legion with which he famously crossed the Rubicon on January 10, 49 BC. The legion appears to have still been in existence in the fifth century...

      and Legio X Equestris
      Legio X Equestris
      Legio X Equestris , a Roman legion, was levied by Julius Caesar in 61 BC when he was the Governor of Hispania Ulterior. The Tenth was the first legion levied personally by Caesar, and was consistently his most trusted...

      demobilized. The veterans of the 10th legion would be settled in Narbo, while those of the 13th would be given somewhat better lands in Italia
      Italia (Roman province)
      Italia was the name of the Italian peninsula of the Roman Empire.-Under the Republic and Augustan organization:During the Republic and the first centuries of the empire, Italia was not a province, but rather the territory of the city of Rome, thus having a special status: for example, military...

       itself.
    • Caesar probably writes the Commentaries in this year
  • 44 BC
    • Julius Caesar is named Dictator perpetuo ("dictator in perpetuity")
    • Julius Caesar is assassinated on March 15, the Ides of March
      Ides of March
      The Ides of March is the name of the 15th day of March in the Roman calendar, probably referring to the day of the full moon. The word Ides comes from the Latin word "Idus" and means "half division" especially in relation to a month. It is a word that was used widely in the Roman calendar...

      .

Aftermath

Caesar was later proclaimed dictator first for ten years and then in perpetuity. The latter arrangement in openly doing away with a term limit, triggered the conspiracy leading to his assassination on the Ides of March
Ides of March
The Ides of March is the name of the 15th day of March in the Roman calendar, probably referring to the day of the full moon. The word Ides comes from the Latin word "Idus" and means "half division" especially in relation to a month. It is a word that was used widely in the Roman calendar...

in 44 BC out of such fears. Following this, Antony and Caesar's adopted son Octavius had to fight yet another civil war against remnants of the Optimates and Liberatores faction, but they were crushed by the skill of Marcus Antonius, who was able to defeat his two main opponents, and Octavius, despite having his camp overrun, evaded capture.
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