<prompt> tafadhali geuza maudhui haya ya swahili kwenda kwa kiingereza.miongoni mwa idadi kubwa ya uyoga kuna specimen moja muhimu sana - veselka ya kawaida, ambayo, kutokana na kuonekana na mali yake, imekuwa ya manufaa kwa watu kwa zaidi ya karne moja.  <response>: a prime example of this phenomenon is the migration of the cornish miners - a migration that has, in fact, had a major impact on the global mining industry for over a century. 