In 1869, the new statistical office of the capital was created, headed by Kőrösy. A few years later, he started to teach statistics in Budapest, the very first person to do so in Hungary. In 1896, he became a doctor of the University of Kolozsvár (today, Cluj in Romania), and was awarded nobility and the title of szántói, as well as the right to spell his name with a ‘y’ (indicating noble ancestry). The family never converted to Christianity, though, and the Kőrösy coat of arms included two stars of David.