There are three main theories about the beginning of magic. These theories are Uno Mas, Hocus Pocus, and The Great Migration. 

I will start with the theory of Uno Mas. Uno Mas is a theory about one wizard-like primate, believed to be the wizard who started it all. He is literally believed to be the father of all wizards and witches. This theory, in fact, has no basis in reality. One should take offense to these bold claims, especially pure-blooded folk, as this essentially means that all pure-bloods are essentially in-bred. Inbreeding leads to all sorts of physical deformations, so if this theory were true, today's pure-bloods would look more gorilla-like, akin to Uno Mas's speculated form. The theory of Uno Mas also does not explain the existense of muggle-born witches and wizards. This theory is also incorrect because it claims that Uno Mas created the first wand. If he did this, the idea of a wand would not have spread quickly, because pre-historic communities share creative ideas, as that was not even a thought at the time. 

The second theory I will be discussing is The Great Migration Theory. This theory is semi-logical, but has one key fallacy. That being that all wizards and witches would not have migrated together, to form one community. Wizards and witches spread across the world would have most likely found out about their abilites at different times, and wizards who had recognized their abilities would most likely have left some of their own kind behind. I propose a different theory, but similar, that would explain this concept much better than the Great Migration Theory. I will discuss that theory later in the book. 

The third theory that I will discuss is The Hocus Pocus theory. It describes a first interaction with magic, based on a written record. Now even if this were a true story, I do not believe that it is the first interaction with magic. I urge you as the reader, especially if you are a budding historian, to remember that there is a time in human, and therefore wizarding history, before written records. Theories about the beginning of magic should never use written examples, because magic has most likely existed prior to the invention of the written record.