They were all the tribes and nations that were from Ham and his family. Each tribe had their own country, and their own language.
Shem was Jafeth’s older brother. The Eber mob are from Shem’s family.
The people that were born into Ham’s family split up into different tribes too, and each tribe had their own language, and their own country. Ham’s sons were Cush, and Egypt, and Put, and Canaan.