That is the big list of all the families and tribes that were born into Noah’s family. They split up into their own nations, and they went everywhere after the big flood.
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.
The people on the earth kept on having lots of kids, and those kids grew up and kept on having more kids, so after some time there were lots of people on the earth. And some people had very pretty daughters.
Noah was 600 years old at the time that he went into the big boat to be safe from the flood. Noah, and his wife, and his 3 sons, and their wives too, they all went into the big boat.