The present graduate thesis deals with the issue of establishing Slovene as a scientific language. The founder of St. Stanislav's Institution, archbishop Anton Bonaventura Jeglič, sought to establish a completely Slovenian high school from the very beginning. Already for the first generation of high school graduates in 1913, he managed to obtain a license to pass the maturity exam in mother tongue which was a top achievement for the Slovenian high school.
The establishment of a grammar school and then the implementation of lessons were a considerable problem, as until then there was not enough teaching material in Slovene. For this reason, the bishop sent his professors to study in Vienna, where they prepared for teaching. Upon their return, they wrote some schoolbooks, which became the teaching material for all lessons in high schools where they were taught in Slovenian language. The schoolbooks were of such quality that they were also used in the interwar period. On March 6th 1913 after obtaining license on the public use of the matura from Ministry for Education and Religious Affairs, the bishop, in direct correspondence with Vienna, managed to get the right for students to take exams in Slovene. They took the matura exams in Latin, Greek, German and Slovene. They first they took written exams, which took place between 9th and 12th June. Between 5th and 9th July, they took oral exams. The last year was successfully finished by all thirty students, so that all of them were given the right to take the matura. As many as half of them passed the exams with distinction. From 1914 onwards St. Stanislav's Institution had a permanent license from the state authorities to carry out the state-valid matura.