When did Astrology first come to?
The year it came out, i.e xxx b.c./a.d., it’s original origin, and how it was used.
There is no “date” on when this happened. It happened concurrently with human beings being human beings.
The oldest recordings of astrological significance may be found in Rg Veda, which is from several thousand years B.C.E – perhaps 3,000 B.C.E. However these descriptions are already extremely well developed, which clearly suggests that the science must have been existent and/or developing for a significant amount of time prior to that recording.