The Mfecane System was a binary star system in the Solarian League with two settled planets, Ndebele and Zulu, which were collectively referred to as the Mfecane worlds. Both were high-gravity worlds which were colonized in the Second Great Bantu Migration. The settlers purposefully selected planets with a high gravity because they believed it would improve the pure original human stock as they defined it. Ironically, given the racial motive that spurred the original colonists to move to these planets, both planets – especially Ndebele – did not receive much sunlight, which selected for albinism.