The /Xam Abathwa were a tribe of Humans from the continent of Africa on Earth.
They had a story dating back a hundred thousand years, "the girl who made the stars", in which a girl creates the Milky Way Galaxy by throwing wood ash into the sky. Michael Burnham recalled the story while preparing to meet her foster brother Spock in 2257. (DIS: "Brother"; ST: "The Girl Who Made the Stars")