The Department of Mathematics has existed since the beginning of higher education in Pilsen. Its germs can be symbolically traced back to the beginning of the 20th century, when the Testing Institute of the Škoda Works was founded, based on which the Department of Applied Mathematics and Mechanics was established in 1930 with its branch in Pilsen. In 1949, a branch of the Czech University was established in Pilsen, which in 1950 became an independent faculty and in 1953 the independent College of Mechanical and Electrical Engineering (CMEE). Mathematics was taught at CMEE by the Institute of Theoretical Sciences, which in 1954 initiated the establishment of two predecessors of the current Department of Mathematics: the Department of Mathematics and Physics and the Department of Mathematics and Descriptive Geometry. In 1990, the Faculty of Applied Sciences (FAS) was established at CMEE and the existing Department of Mathematics became one of its departments. As part of FAS, the Department of Mathematics was transferred to the newly established University of West Bohemia in Pilsen (UWB) in 1991. And this situation continues until now. Thus, it can be stated that the Department of Mathematics is one of the oldest parts of the current University; however, its history dates back to the time before the establishment of FAS and UWB.