 In the introduction of Grammatica Slavico–Bohemica by Pavel Doležal, he commends biblical Czech as a language that positively influences cultivation of Slovak

A pioneer of collaborative research in the history of the Kingdom of Hungary, Bel undertook a comprehensive historical and geographic examination of the territory in his well-known "Notitia Hungariae Novae Historico Geographiaca".His work about the counties of Hungary was aided by many – while others accused him of espionage.The chancery entrusted Sámuel Mikoviny to supplement his work with detailed maps.