Joshua Karn was born in 70 BBY. It is not certain what planet his homeworld is, as shortly after he was born, his parents left the system as the star was going to go supernova. They journeyed to Coruscant. There, Joshua was taken by the Jedi Order to begin studying the ways of the Force. His parents were concerned about this and wanted to see him, but they were barred from entering the Temple. Karn would never see his parents again, as they were killed in a violent accident.