I thought it started with Capricorn, because that's the January sign.

*Ares

https://www.quora.com/Why-does-the-Zodiac-always-begin-with-Aries-as-the-first-sign-in-all-cultures

They probably have the answer here

Well astrology originates at Roman times where they always kept on changing the calendar

Nope! It was organized back then, but it had already existed for centuries.

I'm not arguing that, and that's not what I was saying. I just wanted to clarify that astrology was around well before the Romans were.

Oh okay