 Ramba uchinyora ndima iyi - Kutengwa kwakaitwa Louisiana Territory muna 1803 kuFrance kwakapa United States kodzero yokutaura kuti ndiyo yaiva nzvimbo ine mvura yeRwizi rweMissouri. Rwendo rwaLewis naClark180406 vakawana pfuma yakawanda yokuredza mhumhi munharaunda yacho. Purezidhendi Thomas Jefferson akanga achidisa kuona zvinhu izvi zvichishandiswa, achidavira kuti vabati vematehwe navatengesi pamwe chete navanhu vomunzvimbomo vomunzvimbomo vaizobatira seboka rapamberi rokupararira kweAmerica munharaunda itsva. 