This is a highly complex story and I very much suggest that you read as much as you can about him here: Julius Caesar. But I'll attempt to write a quick biography here, anyway. read more
Julius Caesar had tremendous power and influence among the Romans and was basically an Emperor in all but name. The first, and most obvious answer to your question is his military prowess. Throughout his long career, Julius Caesar had fought many, many wars. read more
In 49 BC, having consolidated his power, Julius Caesar declared himself "dictator" of Rome. The first true Emperor was his successor, Augustus Caesar (Octavius) in 27 BC. read more
Gaius Julius Caesar (/ ˈ s iː z ər /; 12 or 13 July 100 BC – 15 March 44 BC), known by his cognomen Julius Caesar, was a Roman politician and military general who played a critical role in the events that led to the demise of the Roman Republic and the rise of the Roman Empire. He is also known as an author of Latin prose. read more