<prompt> Qedela le nkulumo elandelayo: INorth Dakota e-United States ibiyindawo yokukhiqizwa kwezinto zobumba zesimanje kusetshenziswa ubumba lwaseNorth Dakota kusukela ekuqaleni kwawo-1900. Ngo-1892 kwanyatheliswa ucwaningo olwenziwa u-Earl Babcock, umfundisi we-chemistry e-University of North Dakota UND olwabika ngezimfanelo eziphakeme zobumba baseNorth Dakota bokwenza izinto zobumba. Isikole se-UND School of Mines saqala ukusebenza ngo-1898 no-Earl Babcock njengomqondisi. Ngosizo lwababumbi abaningana baseMpumalanga, izitsha zobumba ezenziwe ngobumba lwaseNyakatho Dakota zaqala ukuboniswa e-  <response>: UMbukiso Wezwe WaseSt. Louis ka-1904. 