impossible to say, mostly because we're not even sure who was actually the first one there. frederik cook claimed he was the first there, but a year later robert peary claimed he was the first to actually make it there. and we're not convinced either actually did make it there.

if either of them did make it there, they didnt publish their first words, to the best of my knowledge. though peary did write in his diary, 'the pole at last!'.