The Kaliningrad Zoo was founded in 1896 as the Königsberger Tiergarten in the German town of Königsberg, which in 1945 became part of Russia and was renamed Kaliningrad.
 Thus, the zoo is one of the oldest zoological gardens in Russia, and one of the largest.
 Its collection, which extends over 16.5 ha, comprises 315 species with a total of 2264 individual animals (as of 2005).
Chernyakhovsk (Russian: Черняхо́вск ; German: "Insterburg" ; Lithuanian: "Įsrutis" ; Polish: "Wystruć" ), formerly known as   until 1946, is a town and the administrative center of Chernyakhovsky District in Kaliningrad Oblast, Russia.
 It is located at the confluence of the Instruch River and Angrapa River, forming the Pregolya River flows through Kaliningrad into the Vistula Lagoon.
 Chernyakhovsk has a population of  (2010 Census)
Jan Mikulicz-Radecki (German: "Johann Freiherr von Mikulicz-Radecki" ) was a Polish-Austrian surgeon.
 He was born on 16 May 1850 in Czerniowce in the Austrian Empire (present-day Chernivtsi in Ukraine) and died on 4 June 1905 in Breslau, German Empire.
 He was professor in Kraków, Wrocław, and Królewiec (Königsberg).
 He was the inventor of new operating techniques and tools, and is one of the pioneers of antiseptics and aseptic techniques.
 In Poland he is regarded as one of the founders of the Kraków school of surgery.
Kaliningrad Special Region (Russian: Калининградский особый район ) (also known as the Kaliningrad Defensive Area (Russian: Калининградский оборонительный район )) (Russian: КОР ) was a military district of the Russian Armed Forces from 1997 to 2010.
 It was charged with the defense of the Kaliningrad Oblast and protection of national interests in the southern Baltic.
 The area of the KDA was unique in Russia, as separate branches of the armed forces existed under a single command.
 In recent years, the Kaliningrad Special Region played an important role in countering the U.S. missile defense system in Europe.
 On September 1, 2010, the district was merged with the Leningrad and Moscow military districts to create the Western Military District.
Minsk–Kaliningrad Interconnection is a natural gas pipeline interconnection between Kaliningrad Oblast of Russia, Lithuania and Belarus.
 Currently it is the only pipeline supplying natural gas to Kaliningrad Oblast.
Nesterov (Russian: Не́стеров ), until 1938 known by its German name Stallupönen (Lithuanian: "Stalupėnai" ; Polish: "Stołupiany" ) and in 1938-1946 as Ebenrode, is a town and the administrative center of Nesterovsky District in Kaliningrad Oblast, Russia, located 140 km east of Kaliningrad, the administrative center of the oblast, near the Russian-Lithuanian border on the railway connecting Kaliningrad Oblast with Moscow.
 Population:  (2010 Census) ;  (2002 Census) ;  (1989 Census)
The Šešupė ( ; Russian: Шешупе ; German: "Scheschup(p)e" ; Polish: "Szeszupa" ) is a river that flows through Poland (27 km), Lithuania (158 km), and Russia (62 km).
 The river flows for 51 km along the border between the Kaliningrad Oblast, an exclave of Russia, and Lithuania.
 The Šešupė originates near the Polish town of Szeszupka, about 10 miles from the Polish-Lithuanian border, and flows into the Nemunas near the town of Neman on the border between Lithuania and Kaliningrad Oblast.
Krasnoznamensk (Russian: Краснозна́менск , lit. "
Red Banner Town"), formerly Lasdehnen (1734-1938; Lithuanian: "Lazdynai" ) and Haselberg (1938-1946), is a town and the administrative center of Krasnoznamensky District in Kaliningrad Oblast, Russia, located on the Sheshupe River, 163 km northeast of Kaliningrad, the administrative center of the oblast, and approximately 10 km to the south of the border with Lithuania.
 Population:  (2010 Census)
Pravdinsk (Russian:    ), prior to 1946 known by its German name Friedland (Lithuanian: "Romuva" ; Polish: "Frydląd" ) is a town and the administrative center of Pravdinsky District in Kaliningrad Oblast, Russia, located on the Lava River, approximately 30 km east of Bagrationovsk and 53 km southeast of Kaliningrad, the administrative center of the oblast.
 Population:  (2010 Census) ;  (2002 Census) ;  (1989 Census)
Königsberg is the historical name for the present-day city of Kaliningrad, Russia.
 Originally a Sambian or Old Prussian city, it later belonged to the monastic state of the Teutonic Knights, the Duchy of Prussia, the Kingdom of Prussia, the Russian Empire and Germany until 1946.
 After being largely destroyed in World War II by

Question: Jan Mikulicz-Radecki was a professor in which town that is currently known as Kaliningrad, Russia? 
Answer: Königsberg