The University of Warsaw (Uniwersytet Warszawski, Universitas Varsoviensis) is a public university in Warsaw, Poland. Established in 1816, it is the largest institution of higher learning in the country offering 37 different fields of study as well as 100 specializations in humanities, technical, and the natural sciences. The University of Warsaw consists of 126 buildings and educational complexes with over 18 faculties: biology, chemistry, journalism and political science, philosophy and sociology, physics, geography and regional studies, geology, history, applied linguistics and philology, Polish language, pedagogy, economics, law and public administration, psychology, applied social sciences, management and mathematics, computer science and mechanics. In 1795, the partitions of Poland left Warsaw with access only to the Academy of Vilnius when the oldest and most influential Polish academic center, the Jagiellonian University in Kraków, became part of the Austrian Habsburg monarchy. In 1815, the newly established semi-autonomous polity of Congress Poland found itself without a university at all, as Vilnius was incorporated into the Russian Empire. In 1816, Alexander I permitted the Polish authorities to create a university, comprising five departments: Law and Administration, Medicine, Philosophy, Theology, and Art and Humanities. The university soon grew to 800 students and 50 professors. After most of the students and professors took part in the November 1830 Uprising the university was closed down; it was again closed after the failed January Uprising of 1863. As a consequence, all Polish-language schools were prohibited by the Imperial Russian government which controlled Congress Poland. During its short existence, the university educated thousands of students, many of whom became part of the backbone of the Polish intelligentsia. In 1915, during the First World War, Warsaw was seized by German Empire and the occupying German authorities allowed a certain degree of liberalization to gain military support from the Poles.