Why did humans create the 88 constellations?

In ancient times, in order to facilitate navigation and observe astronomical phenomena, people connected the scattered stars in the sky through imagination. Half of them were named in ancient times, and their naming methods include myths and epics of Mesopotamia, Babylon, Egypt and Greece. The other half (mostly in the night sky in the southern hemisphere) was named only in modern times, and is often named after navigation instruments. 1928, in order to unify the complicated constellation division, the International Astronomical Union divided the sky into 88 constellations with precise boundaries, so that every star in the sky belongs to a specific constellation. ?