Complex sentence: Professor of history at the Jagiellonian University (since 1995), the university's prorector of didactics (1999-2002), head the Institute of Social and Religious History of Europe in 19th and 20th century.
Split into simpler sentences: Professor of history at the Jagiellonian University (since 1995), University's prorector of didactics (1999-2002). Heads the Institute of Social and Religious History of Europe in 19th and 20th century.