<prompt> Translate the following text to SwahiliThe region that would become Poland, a great plain sandwiched between the Vistula and Odra rivers, has been inhabited since the Stone Age by migratory tribal peoples among them Celts, Balts, Huns, Slavs and Mongols.  <response>: Eneo ambalo baadaye lilikuja kuwa Poland, tambarare kubwa iliyo kati ya mito ya Vistula na Odra, limekaliwa tangu Enzi ya Jiwe na watu wa makabila ya wahamiaji, miongoni mwao Wacelt, Balts, Huns, Waslavoni na Wamongolia. 