Who invented pointless algebra

     Algebra was not invented by one person it was invented by different people over the centuries. One man named Muhammad ibn Musa ibn al-Khwarizmi in a book made around 820 A.D. Why did he do this?? He came up with the name but not the method. History with Babylonia's they were noted to use algebra back way back like Mr. B's time. The Babylonians knew how to deal with cubic and quadratic equations and some other basic concepts of algebra. The Egyptians were more into Linear Equations. Why would somebody or people do that to the world?!