Julius Caesar’s full name was Gaius Julius Caesar, and he was born in Rome around 100 BC.

Though he would become one of the most recognized figures in all of history, Caesar came from a noble family that carried social standing without particularly deep pockets.

The month of July takes its name from Caesar, born during that month, a distinction that has kept his name embedded in everyday language for more than two thousand years.

Caesar was instrumental in developing the Julian calendar, which restructured how Rome tracked time and later served as the foundation for the Gregorian calendar, the refined version still in use today.

He entered into a political arrangement with Pompey and Marcus Licinius Crassus known as the First Triumvirate, a power-sharing alliance that reshaped Roman politics.

His military campaigns in Gaul, a territory covering much of what is now modern France and surrounding regions, added enormous land to Roman control and roughly doubled the size of territory under Rome’s authority.

Caesar also led Roman forces across the Rhine River and conducted expeditions into Britain, making him one of the first Roman commanders to push into either region.

The phrase “crossing the Rubicon” entered the language because of a single decision Caesar made: marching his army across the Rubicon River in defiance of Roman law. The act was illegal and constituted a declaration of war against the state, making it one of the most audacious gambles in ancient history.

Caesar emerged victorious from the civil war against Pompey. When Pompey fled to Egypt, Caesar followed, and found himself drawn into the complexities of Egyptian politics. He was reportedly appalled when Egyptian officials presented him with Pompey’s severed head, viewing it as a profound violation of the dignity owed to a man he had respected despite their years of political rivalry.

In Egypt, Caesar began a well-documented romantic relationship with Cleopatra. She later bore a son named Caesarion, widely believed to be Caesar’s child. Cleopatra subsequently became involved with Caesar’s close lieutenant Mark Antony.

For all his power and fame, Caesar never technically held the title of emperor. His formal position was dictator for life, an unprecedented consolidation of authority within the framework of a republic that had not been designed for it. Rome would not become an empire in the formal sense until after his death.

Among his domestic reforms, Caesar substantially expanded the size of the Roman Senate and extended citizenship to communities in Spain and parts of northern Italy.

Caesar was not only a military commander and political operator but also a writer of considerable skill. His accounts of his own campaigns remain primary historical sources and are still read and studied today.

His family claimed divine ancestry through the goddess Venus, known in the Greek tradition as Aphrodite, a lineage that lent the family a mythological prestige.

As a young man, Caesar was captured by pirates. According to later accounts, he responded to his captivity with a kind of contemptuous amusement, joking that the ransom they intended to demand was far too low for a man of his standing. After his release, he reportedly organized a fleet, tracked the pirates down, and had them crucified.

Caesar introduced Romans to the giraffe, an animal so unfamiliar that people described it as a “camelopard,” reasoning that it resembled a strange combination of camel and leopard.

To reduce the congestion choking Rome’s streets, he prohibited wheeled vehicles from using them during most daylight hours.

Caesar was stabbed twenty-three times on the day of his assassination, though an ancient physician who examined him concluded that only a single wound had actually been fatal.

That assassination took place on March 15, 44 BC, the date the Romans called the Ides of March, one of the most famous days in recorded history.

Caesar had long aligned himself with the Populares, the political faction that positioned itself as a defender of ordinary Romans against the entrenched aristocratic class. His killing shocked and outraged a large portion of the Roman population.

The irony of the assassination was that it achieved the opposite of what its architects intended. Rather than preserving the Republic, it plunged Rome into further civil war and ultimately cleared the path for Caesar’s adopted heir and biological great-nephew Augustus to establish the Roman Empire.

Caesar’s name carried such weight that it was absorbed into the vocabulary of power across cultures and centuries. It became Kaiser in German and Tsar in Slavic languages, titles that rulers wielded long after Rome itself had fallen.