It all comes back in the time of our ancient ancestors, or so-called the biblical time. There is the time where our ancestors wanted to reach the top of the world, and for able them to do that they have to build a very huge and tall structure. So they decided to make one, but not just a huge one, but they wanted to build the tallest in the world, tall enough that it could take them at top of the world. That structure is none other than the Tower of Babylon or so-called the tower of Babel. Leading by the great Nimrod he leads and commands people perfectly to the point that all are doing good in building up the tower, but God is not pleased with their actions and He wants the people to stop building the tower, as the result, God punished all of them by disrupting their language thus giving each of them a different language so that they can never understand each other, furthermore they were been scattered around the world. That is the reason why people have different languages.