"A Brief History of Fermat's Last Theorem" by Prof. Kenneth Ribet

New channel Center for Advanced Mathematical Sciences - AUB: title sample judged 'whole' (This is a university research center's lecture archive with nearly every upload being a genuine advanced mathematics sem); passed a second screen for sellers/exam-prep/re-uploads; 0 of 3 sampled transcripts showed teaching, 0 not; titles picked one by one, checked strictly; oEmbed verified.