THE HUMBLE APOSTLE OF THE HISTORY OF MATHEMATICS: BARNA SZÉNÁSSY. he essay follows the life of a mathematics professor from Debrecen, Barna Szénássy (1913–1995) from the beginnings. he personal writing decsribes his life phases, teaching activities, the signiicance of his research in the history of mathematics which points beyond our borders, and his colorful personality. he pictures accompanying the essay are rare artifacts from the family archive.