Solemn scientific seminary devoted to jubilee of the 50^th anniversary of Stability of Structures Symposia took place on 17th of May 2013 in Ambasador Hotel, Lodz.

In the seminary participated: Rector of Poznan University of Technology-Professor Tomasz Łodygowski, Rector of Higher School of Labour Safety Management in Katowice-Professor Marek Trombski, Vice-Rector of Czestochowa University of Technology-Professor Jacek Przybylski, Dean of Faculty of Organization and Management, Lodz University of Technology - Professor Ryszard Grądzki, Doctor Honoris Cause of Lodz University of Technology, –senior of Polish mechanical engineers - Professor Czesław Woźniak, Vice-President of The Committee on Civil Engineering and Hydroengineering of Polish Academy of Sciences - Professor Andrzej Garstecki. Official opening of the seminary was effectuated by Dean of Faculty of Mechanical Engineering of TUL Professor Bogdan Kruszyński.

The jubilee of the 50^th anniversary of Stability of Structures Symposia was honoured by the presence of Friends - Professors from abroad: Dan Dubina (Romania), Vasyly Krasovsky (Ukraine), Martin Macdonald (UK), Arkady Manevich (Ukraine), Jan Ravinger (Slovakia), James Rhodes (UK), Shigeru Shimizu (Japan), Viorel Ungureanu (Romania), Christopher York (UK). Besides that, following guests attended: from Poznan University of Technology: Professor Krzysztof Magnucki, Professor Jerzy Zielnica and Professor Ewa Magnucka-Blandzi; from Military University of Technology: Professor Tadeusz Niezgoda, Professor Wiesław Barnat and Professor Jerzy Małachowski. Guests from other universities in Poland also participated: Professor Czesław Szymczak from Gdansk University of Technology, Professor Aleksander Muc from Cracov University of Technology, Professor Czesław Cichoń from Kielce University of Technology, Professor Dorota Pawlus from University of Bielsko-Biala and Professor Andrzej Teter from Lublin University of Technology.

Two of the invited guests of the commemorative seminary were the participants of the I Symposium. Mainly speaking PhD Andrzej Młotkowski and Assistant Professor Janusz Lipiński were the ones from all six participants of the Symposium.
Numerous guests comprised of scientific staff of Lodz University of Technology. Together 57 participants took part in the seminary.

History of Stability of Structures Symposia was depicted and speeches of invited guests were given during the solemn seminary. In the scientific part three keynote lectures were presented: Professor Dan Dubina (University ‘Politehnica’ Timisoara, Romania) “Design and research assisted by testing in structural engineering”, Professor Christopher York (University of Glasgow, UK) “Thermo-mechanical tailoring strategies for uni-direction, woven-cloth and hybrid laminate systems”, Professor Maria Kotełko (Lodz University of Technology) “The Lodz Research Center of Stability”.

The summary of seminar can be downloaded here