2-C. The second person in Table 1, Jerzy Kukuczka of Poland, succeeded in climbing all 8000ers in less than half the number of years it took Messner, but this was with the aid of bottled oxygen.The second person in Table 1, Jerzy Kukuczka of Poland, succeeded in climbing all 8000ers in less than half the number of years it took Messner, but this was with the aid of bottled oxygen.
3-C. The very first person to reach all 14 summits, Reinhold Messner of Italy, accomplished this without oxygen support.The very first person to reach all 14 summits, Reinhold Messner of Italy, accomplished this without oxygen support.