These are the descendants of Noah's sons Shem, Ham, and Japheth, to whom children were born after the flood.
References for Genesis 10:1
Japheth's sons: Gomer, Magog, Madai, Javan, Tubal, Meshech, and Tiras.
Gomer's sons: Ashkenaz, Riphath, and Togarmah.
Javan's sons: Elishah, Tarshish, Kittim, and Rodanim.
References for Genesis 10:4
From these the island-nations were divided into their own countries, each according to their languages and their clans within their nations.
Ham's sons: Cush, Egypt, Put, and Canaan.