Why is Aries the first of the twelve constellations?

Hello, I'm glad to answer your question:

Because the time of Aries starts from the vernal equinox-Grain Rain,

This is the beginning of spring,

So I put Aries first,

No other meaning.

Others like to classify water bottles into the first category.

Because Aquarius is the beginning of a year.

I wish you more beauty ~ hope to adopt ~