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.
Genesis 11:9
God judged them by
---dividing the single language into multiple language families.
---As these groups spread out and became isolated, certain features (e.g. skin shade, eye shape)
became dominant in certain groups.
---God stepped in to prevent the human race from falling under the sway of a single, absolute tyrant over all the earth." AIG