Genesis 10:32 (KJV) These are the families of the sons of Noah, after their generations, in their nations: and by these were the nations divided in the earth after the flood.
Genesis 11:3 (KJV) And they said one to another, Go to, let us make brick, and burn them throughly. And they had brick for stone, and slime had they for morter.
Genesis 11:6
And the LORD said, Behold, the people is one, and they have all one language; and this they begin to do: and now nothing will be restrained from them, which they have imagined to do.
Genesis 11:9 (KJV) Therefore is the name of it called Babel; because the LORD did there confound the language of all the earth: and from thence did the LORD scatter them abroad upon the face of all the earth.