As I understand it, 'N. Bourbaki' was the pseudonym of a collective of French mathematicians. How, then, did 'it' give a conference talk in Columbus, Ohio in 1948conference talk1 in Columbus, Ohio in 1948?
1 N. Bourbaki, Foundations of mathematics for the working mathematician [DOI], The Journal of Symbolic Logic, Volume 14, Number 1, March 1949.