Why did the KJB Translators & the KJB itself recognize Noah's 3 sons, Shem, Ham, & Japheth, are where today's races & ethnic groups are from?

"Iaphet [Japheth] - Evropa [Europa/Europe]
"Sem [Shem] - Asia
"Cham [Ham] - Africa"
[The Genealogies of Holy Scriptures To The Reader Page]
[Picture Source]

Genesis 10:32 1611 KJB
These are the families of the sonnes of Noah after their generations, in their nations: and by these were the nations diuided in the earth after the Flood.
Deut 32:8 KJB
When the most High diuided to the nations their inheritance, when he separated the sonnes of Adam, hee set the bounds of the people according to the number of the children of Israel.

[ Israel = Jacob of Genesis 32, 27-28, 46:27 Proof - The Old Testament's Jacob is not the same as Revelation 2:9's "Jews"]

Acts 17:26 1611 KJB
And hath made of one blood all nations of men, for to dwell on all the face of the earth, and hath determined the times before appointed, and the bounds of their habitation:

𝕿𝖍𝖊 𝕮𝖔𝖓𝖋𝖚𝖘𝖎𝖔𝖓 𝖔𝖋 𝖙𝖍𝖊 𝕱𝖆𝖈𝖊𝖘