<prompt> Hlama phetolelo e raraganego ya polelo ye Dikarolo tša kgethollo ya kadimo ya ntlo di diregile mafelong a magaeng a United States go tloga ka bo-1930 go fihla mafelelong a bo-1970.  <response>: Ke therešo gore phetolelo e raraganego kudu ya polelo ke ya gore, Maemo a kgethollo ya kadimo ya ntlo a ile a tšwelela mafelong a magaeng a United States go tloga ka bo-1930 gomme go na le bohlatse bja gore mokgwa wo o tšwela pele go fihla bokgoleng bjo itšego kua United States lehono. 