so i know that most of the popes were italian, and so that takes out joan of arc. fortunately, that leaves columbus and da vinci. i believe gutenberg was german. joan of arc was french. [sighs] so i'm--feel pretty confident that it's down to those two. christopher columbus was from genoa. i wish i knew exactly when pope innocent viii was alive 'cause that would help...a lot. but they're both around the same time: christopher columbus, 1492; leonardo da vinci in the 1500s. so--oh, and popes are not supposed to have children, so is it probably not--got that. >> [chuckles] >> it's clicked. all right. it's a really good question.