The Bible is not the only ancient writing that tells of a creation, flood, and original single language for mankind. Scholars have deciphered writings from all over Mesopotamia, Egypt, and Asia Minor with many other societies believing that these events actually happened, though accounts of retelling vary according to the people and their religions.
But, though God separated the languages of the people in Genesis, He separated them again in the book of Acts, to bring the people of Earth together in the Gospel.
I see the book of Acts as an itinerary of the mission of the Gospel to all nations. Starting there with the speaking of the Gospel in every language, to the vision to Peter that the Gospel was for every race of man when Cornelious was ready to hear of Jesus, to Apostle Paul carrying the gospel to Europe in the far corners of the Mediterranean; Acts reveals the spread of the Word of God to every language.
Despite the fact that the spoken Word was in every language, the written Word was not, and still isn’t today. A quick scan of the facts from the Bible Societies website gives us some startling facts. Of the 6,912 languages in the world, only 451 languages have a translation of the whole Bible. Some 2,479 languages have part of the Bible. This leaves 4,421 languages still waiting for even one book of the Bible.
Biblicadirect.com is a website that allows you to purchase Bibles in many of these languages by the case. You can even create your own cover for these Bibles, specific for a ministry or church. But, the point of course is to get the Gospel out to all people.
A couple of tools that will help you in your research in this area are the SwordSearcher software available online, and the book, Readings from the Ancient Near East, by Arnold & Beyer.
Psalm 147:15 He sends forth his commandment upon earth: his word runs very swiftly.