What cave paintings are you talking about? History only began in Italy around 800 BCE. Humans have lived there for at least 100,00 years, so "prehistory" is so vague as to be useless. I also disagree with the idea that a cultural continuity exists between the neolithic and the Roman period in Italy.Still, my question is left unanswered. The apparent uniqueness of Europe. The antikythera invention alone is a striking example of this. There seem to be other, earlier indicators as well, among other examples, strikingly detailed, if not shockingly realistic, prehistoric cave paintings in France and Spain, that even seem to have evidence of experimentation in perspective, which would see further development in Ancient Rome thousands of years earlier, if not in now lost Ancient Greek paintings, and would ultimately mature in Renaissance Europe. This process is merely one of numerous others that largely originated in, and was developed to it's furthest extent in, Europe. Need I mention naturalistic sculptures predating those of Ancient Egypt, Turkey and Mesopotamia?
Furthermore, perspective is not unique to Europe. Attempts at perspective are as old as art itself.
What "numerous other" processes originated in Europe and were brought to their fullest extent there?
What sculptures do you mean?
Please elaborate, you are being far to vague.