What About The Descendants Of Other People Who Were Saved From The Flood?
There might be descendants of the other people who were with Noah, but their progeny could never come to notice. Only the progeny of Noah come afore. They were greater in numbers, they established empires and great cities. The descendants of other people, if they were, could not make some marks to be noticed and recorded by history.
Also i wants to ask, that if they were not, can we securely believe that the only ummah of Prophet Nuh (as) were; his sons, and their wives? As stated by this Quora user;