I may be wrong, but I THINK Asimov came to the US as a very young child and was raised as fiercely and proudly American. By his Russian parents. So calling him a Russian writer is like calling ... I don't know, y'all figure it out. He was an American Science Fiction Writer, plus a writer of many informative books about just about anything he could get his mind around. We have many of his reference books in our house. Then again, we have many books in our house. But it's big enough, I think.