Question: The Serov Instructions featured instructions on a mass deportation by the Soviet Union of tens of thousands of people from the territories occupied in what year?
Context: The so-called Serov Instructions (full title: "On the Procedure for Carrying out the Deportation of Anti-Soviet Elements from Lithuania, Latvia, and Estonia") was an undated top secret document, signed by General Ivan Serov, Deputy People's Commissar for State Security of the Soviet Union (NKGB).  The instructions detailed procedures on how to carry out the mass deportations to Siberia of June 13–14, 1941 throughout the Baltic States during the first Soviet occupation of 1940–1941. The June deportation (Estonian: "Juuniküüditamine" , Latvian: "Jūnija deportācijas" , Lithuanian: "Birželio trėmimai" ) was a mass deportation by the Soviet Union of tens of thousands of people from the territories occupied in 1940–1941: Baltic states, occupied Poland (mostly present-day western Belarus and western Ukraine), and Moldavia. Operation Priboi ("Coastal Surf") was the code name for the Soviet mass deportation from the Baltic states on 25–28 March 1949.  The action is also known as the March deportation by Baltic historians.  More than 90,000 Estonians, Latvians and Lithuanians, labeled as enemies of the people, were deported to forced settlements in inhospitable areas of the Soviet Union.  Over 70% of the deportees were women, and children under the age of 16. The Nazino affair was the mass deportation of 6,000 people, 4,000 of whom died, on Nazino Island (Russian: остров Назино ) in the Soviet Union in 1933.  The small, isolated Western Siberian island is located about 800 km north of Tomsk, in Alexandrovsky District, Tomsk Oblast near the confluence of the Ob and Nazina Rivers. Soviet deportations from Lithuania were a series of 35 mass deportations carried out in Lithuania, a country that was occupied as a constituent socialist republic of the Soviet Union, in 1941 and 1945–1952.  At least 130,000 people, 70% of them women and children, were forcibly transported to labor camps and other forced settlements in remote parts of the Soviet Union, particularly in the Irkutsk Oblast and Krasnoyarsk Krai.  Among the deportees were about 4,500 Poles.  These deportations do not include Lithuanian partisans or political prisoners (approximately 150,000 people) deported to Gulags (prison camps).  Deportations of the civilians served a double purpose: repressing resistance to Sovietization policies in Lithuania and providing free labor in sparsely inhabited areas of the Soviet Union.  Approximately 28,000 of Lithuanian deportees died in exile due to poor living conditions.  After Stalin's death in 1953, the deportees were slowly and gradually released.  The last deportees were released only in 1963.  Some 60,000 managed to return to Lithuania, while 30,000 were prohibited from settling back in their homeland.  Similar deportations took place in Latvia, Estonia, and other parts of the Soviet Union (see Soviet deportations from Estonia and population transfer in the Soviet Union).  Lithuania observes the annual Mourning and Hope Day on June 14 in memory of those deported. Azerbaijan though not a popular destination for immigrants, has recently experienced waves of immigration with the collapse of the Soviet Union, especially from ethnic Azerbaijanis mostly from Armenia (as refugees), Russia and the rest of the former Soviet Union.  Meskhetian Turks were also relocated to Azerbaijan from Central Asia before and after the end of the Soviet Union.  With the booming petroleum industry, immigration from Turkey has also followed.  In 2010, every eighth resident in Azerbaijan was a migrant, of whom more than 90% of them are Azerbaijanis and 70% are internally displaced persons from the territories occupied by Armenia. Deportation of Koreans in the Soviet Union, originally conceived in 1926, initiated in 1930, and carried through in 1937, was the first mass transfer of an entire nationality in the Soviet Union.  Almost the entire Soviet population of ethnic Koreans (171,781 persons) were forcefully moved from the Russian Far East to unpopulated areas of the Kazakh SSR and the Uzbek SSR in October 1937.  The official reason for the deportation was to stem "the penetration of the Japanese espionage into the Far Eastern Krai", as Koreans were at the time subjects of the Empire of Japan, which was hostile to the Soviet Union.  Estimates based on population statistics suggest that 40,000 deported Koreans died in 1937 and 1938 from starvation, exposure and difficulties adapting to their new environment. Your Dream Home: How to Build It for Less Than $3,500 is a 1950 "do it yourself" book by American columnist and editor Hubbard Cobb.  It was the biggest non-fiction seller of the year of its release, selling over a million copies.  Specifically, the book featured instructions for building a Cape Cod style home, with eight floor plans included.  The book is illustrated and covers all aspects of construction relevant to 1950, from financing the project and clearing the land to constructing built-in furniture for the finished product.  It was the debut book for Cobb, who would go on to produce a number of others in the "do it yourself" genre. Nadir Nadirov (Kazakh: Нәдір Кәрімұлы Нәдіров ; Russian: Надир Каримович Надиров ) born 6 January 1932; Sadarak, Nakhichevan ASSR), is a Kurdish engineer from Kazakhstan.  He was born in Nakhchivan and his family was deported to Kazakhstan in 1933.  He is the president of association of Kurds in Kazakhstan ("Berbang") and the first vice-president of the Engineering Academy of Kazakhstan.  He is also director of the Neft scientific center.  In 1992, he went public with the accounts of mass deportation of Kurds in the former Soviet Union during the 1930s and 1940s. Operation Osen ("Fall"; Russian: Операция «Осень» , Lithuanian: "Operacija „Ruduo“" ) was a mass deportation carried out by the Ministry of State Security (MGB) in the territory of the Lithuanian SSR in the autumn of 1951.  During the operation, more than 5,000 families (over 20,000 people) were transported to remote regions of the Soviet Union.  It was the last large deportation in the series of Soviet deportations from Lithuania.  The operation was a dekulakization campaign specifically targeting peasants who resisted collectivisation and refused to join the kolkhozes (collective farms).
Answer: 1940–1941