#Janos Apaczai

• Apáczai Csere — The surname of János Apáczai Csere (1625–1659), a renowned Transylvanian scholar, encyclopedic philosopher, theologian, and humanist educator of Hungarian ethnicity, who pioneered the introduction of Cartesianism and modern educational methods in Transylvania. His fundamental work, 'Magyar encyclopaedia' (1655), published in Utrecht, represents the world's first encyclopedia written in Hungarian, playing a structural role in developing regional scientific and academic vocabulary.