If I'm remembering correctly, I have heard more than one Christian preacher assert that Blacks are the descendants of Ham, Asians are the descendants of Japheth, and Whites are the descendants of Shem.
Incidentally, as I thought about the assertion, it occurred to me that those three races (Black, White, and Yellow) were the only known races on earth during the time that this myth (that Blacks came from Ham, Asians from Japheth, etc.) came into existence. Whoever made the myth up did not account for the Red and Brown races who were in the Western Hemisphere. The makers of the myth only knew about Black, White, and Yellow and they assigned each race to a son of Noah. This tells me right there that the assertion is a myth.