Complex sentence: Like them and the entire House of Winton before them, she is black: this is pointed out in the books as a distinct rarity: the genetic lines from different nations have been blended for many centuries, and ethnic Africans were a minority of Manticoran settlers.
Split into simpler sentences: Like them and the entire House of Winton before them, she is black. This is pointed out in the books as a distinct rarity: the genetic lines from different nations have been blended for many centuries, and ethnic Africans were a minority of Manticoran settlers.