<prompt> Bhala okuqhubekayo kwalesi sigaba - Ithimba lesayensi, elalakhiwe abanye babantu abavelele kakhulu emikhakheni yabo, lalihlanganisa nabameleli baseUnited States, eDenmark, eNorway naseFrance, kanye nabaseBrithani noMbuso walo. Nokho, ngababili kuphela ababenolwazi lwezindawo ezibandayo ngaphambili: U-Alistair Forbes Mackay, udokotela owayephethe lo mkhumbi, wayevakashele i-Antarctica noSir Ernest Shackleton ohambweni lwakhe olwaluthiwa uNimrode  <response>: ngo-190709, futhi wayengomunye weqembu labantu abathathu abathola indawo yeSouth Magnetic Pole. Omunye umakadebona kaNimrode, uJames Murray oneminyaka engu-46 ubudala, wayengusosayensi wezilwandle kaStefansson. Phakathi kososayensi abasebasha kwakunoWilliam Laird McKinlay 18891983, uthisha wesayensi oneminyaka engu-24 ubudala waseGlasgow owathonyelwa umhloli wamazwe waseScotland uWilliam Speirs Bruce, noBjarne Mamen 18931914, umpetha wokushushuluza oneminyaka engu-20 ubudala waseChristiania, eNorway, owaqashwa njengomqaphi wezihlahla, naphezu kokuntula kwakhe ulwazi lwesayensi. 