The Tyria-Harans were a slightly humanoid species that colonized the planet C'byr 2 circa 6,000 BBY. They built a factory that spanned most of the planet, which was used to create the early APAD battle droids. Revan took over the planet around 3,950 BBY, and had the droids redesigned, simply so the Tyria-Harans would find it easier to conquer.