What is Blender?

Blender emerged in 1998 and was initially used for closed purposes, coming out of an animation studio in the Netherlands called NeoGeo, and was first published as closed-source and paid software.
Of course, later, after the company went bankrupt, the Blender Foundation was established, and the rights of Blender were purchased for €100,000 and it was made open source. After being made open source, Blender, which continued its life for free, has survived to this day.
Anyway, we briefly discussed Blender's history, now let's talk a little about Blender itself

Blender is a free and open-source 3D modeling program.

What Can Be Done With Blender?

With Blender, as long as it is 3D, there is no limit to what you can do. What you want to make as a model depends on your imagination and ability to use the program, but in general, you can do anything.