decision of Treaty of Versailles in the period of 1920–1939 it had become a "free city". The names of the city's educational institutions were affected by the changes in the city status. The university was known by different names: 1918–1921: Technische Hochschule in Danzig (Wyższa Szkoła Techniczna w Gdańsku) 1921–1939: Technische Hochschule der Freien Stadt Danzig (Wyższa Szkoła Techniczna Wolnego Miasta Gdańska) 1939–1941: Technische Hochschule Danzig 1941–1945: Reichshochschule Danzig Following the take over of the city by the Red Army, the Soviets arranged stables and barracks in other buildings. In 1945, all Germans were expelled from the city of Gdańsk and the burned ruins were turned into a Polish university (24.05.1945). In light of tragic history of the university under Nazi rule, today's university officially does not continue traditions of pre-war schools and its history starts in 1945. The school was reorganized and rebuilt under the supervision of Stanisław Turski, a Polish mathematician and former inmate of German concentration camps. Turski also served as the first post-war rector of the university. Important dates in Gdańsk University of Technology history: 1900 – The cornerstone is laid for the university building 1904 – King's Technical High School is created 1941–1945 – The university is subordinated to Nazi Germany 1945 – On May 24, the university became a Polish state academy 2004 – The 100-year anniversary of founding a Gdańsk University of Technology 2014 – The 110-year anniversary of founding a Gdańsk University of Technology 2020 – Smart University Location The Gdańsk University of Technology (Gdańsk Tech) is located in Gdańsk – a city of more-than-1000-year-old tradition, situated at the mouth of the Vistula River on the Baltic Sea. Gdańsk is the capital of the Pomeranian region and has nearly 500 000 inhabitants. The Main Campus is situated in the centre of old Wrzeszcz – a district which has good communication with other parts of Gdańsk. The campus is located on Narutowicza Street. Scientific traditions Johannes Hevelius (1611–1687) created the first world's great astronomical observatory equipped with telescopes. Hevelius was also a physicist because he discovered centuries old changes in magnetic declination. He was technician too, because he constructed Poland's first pendulum clock, conceived, designed and built the first world's periscope, as well as the first micrometer screw which belongs today to the Gdańsk City Council. Daniel Gabriel Fahrenheit (1686–1736) was born in Gdańsk. He is mainly known for being the first to