In 1965 William Henry Scott was a doctoral candidate at the University of Santo Tomas when the bibliographer Mauro Garcia suggested that for his thesis he examine the history of the Philippines before the arrival of the Spaniards. Garcia had received several fake documents from José Marco in the past, which made him suspicious of Marco's first discoveries upon which so much early history was based.
Sa panahong iyon, ang bagong henerasyon ng mga dalubhasa ay nagsimula na ring maghinala sa kasaysayang itinuro sa mga Filipino sa loob ng nakaraang kalahating siglo. Noong 1965, si William Henry Scott ay nag-aaral para sa kaniyang doctorate sa University of Santo Tomas nang may iminungkahi sa kaniya ang mananaysay na si Mauro Garcia.