In 1903, the Konigliche Akademie zu Posen was founded in Poznan. After World War I, in 1919, this Akademie became the foundation for organizing the physics department at the University of Poznan and then also a branch of the Polish Physical Society. The Poznan Branch of the Physical Society was created on June 30, 1923. The first elected chairman of the Branch Board, Professor Tadeusz Peczalski, built from scratch the Department of Theoretical Physics of the University of Poznan. In 1935, Prince Louis de Broglie was a guest of this department and gave a lecture discussing his research in the field of wave mechanics. After World War II, the Poznan Branch was revived and registered on May 21, 1949. It was consecutively headed by eminent scholars: Professor Szczepan Szczeniowski, Professor Stanislaw Loria and Professor Arkadiusz H. Piekara. Over the years, five congresses of Polish physicists were held in Poznan, i.e., in 1930, 1952, 1969, 1991, and 2013.
