What are the origins of the sentient races of Earth?
They all were created by the divine, the process of evolution, or both, depending on your point of view. The Lost Race came first. They have since disappeared. The gargoyles came second, and are considered the First Race. They didn’t use magic. Going by evolution, the gargoyles descended from a species that is often classified along with dinosaurs, without necessarily being dinosaurs. The humans came third, and are considered the Second Race. They did use magic. The Children (of Mab, of Oberon) came fourth, and are considered the Third Race. They were created from magic.