Anatoli Nikolaevich Boukreev was a Russian Kazakhstani mountaineer who made ascents of 10 of the 14 eight-thousander peaks, i.e., peaks above 8,000 m, without supplemental oxygen. source
Americans are good with to-do lists; just tell us what to do, and we'll do it. Throughout our history, we have proven that. Colonize. Check. Win our independence. Check. Form a union. Check. Expand to the Pacific. Check. Settle the West. Check. Keep the Union together. Check. Industrialize. Check. Fight the Nazis. Check.