Jaroslav Věšín’s participation in exhibitions in Prague, Vienna, Munich, Berlin, London, Antwerp, Brussels, Paris, Chicago, New York and the awards and distinctions he had amassed gained him a name and popularity, noticed also by Konstantin Velichkov – minister of public education in the third cabinet of Dr. Konstantin Stoilov (1894–1899). The minister himself had studied at the Florence Academia di Belle Arti under Professor Giuseppe Ciaranfi, and was one of the originators of the establishment (1896) of the State Drawing School in Sofia (today, the National Academy of Arts). Shortly before he exchanged his ministerial position for another (1897), K. Velichkov offered Jaroslav Věšín a professorship at the school.
The colourful Czech arrived in Bulgaria with his family and a few suitcases, to remain here until his death. At the turn of the two centuries, Bulgaria was steadfastly pursuing her national unification, rapidly shaking off the Orient, her sights set firmly on Europe. Modernity still battled with the colourful motley of the Revival lifestyle, and Jaroslav Věšín was mesmerized.
Between the autumn of 1897 and May of 1915, eighteen summers passed, complete with a sense of accomplishment, achievements, and occasionally – unfulfilled expectations. Until 1904, Jaroslav Věšín was a professor at the Drawing School, alongside other educated in Europe artists of post-Liberation Bulgaria: Anton Mitov, Ivan Angelov, Zheko Spiridonov, Petko Klisurov, as well as foreigners: the Czechs Ivan (Jan) Mrkvička, Josef Syllaba, Joseph Piter, the Lithuanian Jewish Boris Schatz, etc. Among his many students were names such as Nikola Petrov, Atanas Mihov, Elisaveta Konsulova-Vazova, Alexander Bozhinov, and many others.