After crossing the Rubicon and becoming the dictator of Rome, Ceasar amassed a huge amount of political power/control. Some amongst the populace even referred to him as 'King' on one ocassion (which he admittedly rebutted). So why is it that we refer to Augustus as the first Emperor of Rome? Was Julius Ceasar not an Emperor in all but name?
On from this, what changes did Augustus bring to Rome which differentiates his power to his uncle that grants him the title?
Hi! You may be interested in this comment I wrote a while ago, or this discussion between /u/xenophontheathenian and myself.
Those might keep you busy until someone comes along to address your question directly.