January 1. In Tarnopol, a process of 51 members of the Communist Party of Western Ukraine ends. Izrael Wuhl is sentenced to 8 years in prison, Himmelstein Szapse – to 6 years. Altogether, 37 persons are sentenced. According to the government's statistics, as for January 1, 1938, there are 44 200 motor vehicles in Poland, including 9876 motorcycles. In 1937, 194,000 tourists visited the Eastern borderlands of Poland, with 66,000 of them visiting Wilno,
January 28. Józef Beck gives a speech at the League of Nations session in Geneva
January 29. Empress of Iran, Tadj ol-Molouk, comes to Poland. In southern Poland, in Drohobycz and Boryslaw, violent hurricane destroys several oil rigs,
March 11. Herbert Hoover visits the Jagiellonian University in Kraków. A soldier of the Border Defence Corps is killed on the Polish – Lithuanian border by Lithuanian troops,
March 13. Józef Beck leaves Rome. On the same day in Lutsk, the meeting of the Association of Reserve Officers takes place,
March 18. In Wilno and Warsaw, thousands of inhabitants take part in an anti-Lithuanian demonstration. Among Polish officials present at the demonstration in Wilno, is the commander-in-chief of the Polish Army, Edward Śmigły-Rydz, who had come to the city by train at 7:45 a.m.,
March 19. The government of Lithuania accepts Polish ultimatum,
March 27. In Lwów, 27 members of the Communist Party of Western Ukraine are sentenced to several years in prison. Sara Bryn is sentenced to 10 years, Rybka Malinowitzer and Gerdie Zimmer to 7 years, and Dora Eichenbaum to 5 years,
March 27. In Lwów, and other cities of southern Poland, hundreds of Jewish refugees from Austria arrive (see: Anschluss),
March 28. Franciszek Charwat arrives in Kaunas as the first Polish diplomatic representative in Lithuania,
March 30. President Ignacy Mościcki grants amnesty to 134 criminal prisoners. On the same day, Association of Poles in Czechoslovakia issues a statement in which it demands autonomy for the Polish minority of Czechoslovakia. First telephone conversation between Poland and Lithuania takes place,
March 31. Poland and Lithuania establish diplomatic relationships,
April 19. Inhabitants of Wilno celebrate the 19th anniversary of the city's liberation from the Soviets. Dar Pomorza returns to the port of Gdynia, after a 216-day cruise,
April 20. The outbreak of an epidemic of typhus in the area of Jaworów. In Wilno, eight students of Jewish high schools are sentenced for membership of communist organizations,
April 21. Polish mass-media inform that the population of the country is 34,534,000,
April 23. In Warsaw, 39 communists are sentenced to several years in prison. South of Muszyna, Czechoslovak border guards shoot a Polish balloon Moscice,
April 25. Minister Eugeniusz Kwiatkowski visits Polish Upper Silesia. Local authorities in Wilno allow publication of Lithuanian minority newspapers and magazines,
May 20 Romanian prime minister, Patriarch Miron Cristea, comes to Poland. A transport of bears from the Soviet Union comes to Białowieża Forest. Some of Josephine Baker's possessions are stolen during her stay in Lwów,
May 21. Minister Józef Beck leaves Warsaw for Stockholm,
May 22. A Ukrainian Congress, planned in Lwów to commemorate the 70th anniversary of the creation of Prosvita, is banned by the Polish government. Romanian prime minister visits Kraków. In Warsaw, Polish lawyers present to the army six anti-aircraft guns,
May 25. Large fires destroy about 100 buildings in two villages near Wilno. In Stockholm, Józef Beck meets Gustaf V. A meeting of Polish Gymnastic Society Sokół, planned in Lwów, is called off,
May 26. Meeting of Reserve Officers takes place in Lwów, attended by Marshall Edward Rydz-Śmigły. Prime Minister Felicjan Sławoj Składkowski tours Greater Poland,
May 31. A new ambassador of Romania comes to Warsaw. Works on the Warta – Gopło canal begin in Kujavia.
June 1. Fire in the biggest Polish glass manufacturer, Kara, in Piotrków Trybunalski. Polish minority parties win local elections in Załozie, garnering almost 11,000 votes,
June 7. An extraordinary session of the Sejm begins in Warsaw. A hydrobiological station is opened in Pinsk, as the third one in Poland, after stations in Hel, and at the lake Wigry,
June 8. A Polish delegation flies to Kaunas, to discuss the opening of air connection between Poland and Lithuania,
June 9. Two planes of the Luftwaffe enter Polish airspace near Katowice,
June 11. A train with remains of Saint Andrzej Bobola comes to the border station of Zebrzydowice, greeted by thousands of faithful,
June 14. Józef Beck visits Tallinn, where he dines with Estonian minister of foreign affairs, Karl Seiter,
June 15. Józef Beck has breakfast with President of Estonia, Konstantin Päts. The first customs office is opened in Landwarow, on the Polish–Lithuanian border,
June 19. Marshall Edward Rydz-Śmigły visits Polish Pomerania,
June 21. The school year ends in Poland. Five peasants drown while crossing the Bug in the village of Orla, Brzesc County,
June 22. Colonel Walery Sławek is elected Marshall of the Sejm. According to government statistics, there are 279,799 registered unemployed in Poland. President Moscicki leaves for vacation in Opatija,
June 24. A train from Kraków to Lwów derails in Biezanow on the outskirts of Kraków, 25 people are injured. Gdynia is reported to be the biggest port of the Baltic Sea,
July 13. Józef Beck comes to Riga, on a plane from Wilno, with a 20-minute break at Kaunas. Flood warning in southern Poland,
July 14. Józef Beck visits Jelgava, where he dines with Kārlis Ulmanis. Five people die when a car crashes with a train in Sosnowiec. Secret funeral of Stanisław August Poniatowski takes place in his hometown of Wolczyn,
July 15. The number of bicycles in Poland exceeds one million. A direct air connection between Warsaw and Kaunas is opened. In Trans-Olza, Czechoslovak police arrest a number of Polish-minority activists,
July 21. Near Pinsk, a skirmish between local police and a group of communists takes place. The communists wanted to illegally cross Polish–Soviet border,
July 22. Three crew members die in a crash of a Polish Airlines plane near Cernauti.
July 25. Association of Ukrainian Merchants in Tarnopol announces a project "Ukrainians buy only at Ukrainian stores",
July 28. After a two-week delay, the Polish government officially informs the public about the funeral of Stanisław August Poniatowski, which took place on July 14,
July 29. The opening ceremony of Biały Słoń, a campus of the Polish Astronomical and Meteorological Observatory, takes place on the peak of Pip Ivan,
July 30. Polish press announces that between mid-1935, and mid-1938, only 107 kilometres of concrete roads were built in the whole country.,
August 7. Seventeen people are injured in a rail crash near Sochaczew,
August 8. Union of Poles in Germany protests against questionnaires, suggested by the Nazi Germany government for the German census. The questionnaires exclude the possibility of stating one's nationality. In Łódź, 1600 tailors go on strike,
August 9. A delegation of officers of the French Navy comes to Warsaw. In Gdynia, Józef Beck meets with Duff Cooper,
August 10. Edward Rydz-Śmigły visits Poznań. Polish press informs that Soviet authorities still have not released three young Polish gliders, who had mistakenly landed in the Soviet Union during a storm on June 26, 1938. The whereabouts and the fate of the gliders are unknown,
August 11. Meeting of General Council of Camp of National Unity begins in Warsaw. Seven children from Kowel county, Volhynia, aged 8–11, died after an explosion of a World War I bomb, found by them in the ground. A fire in the town of Łosice destroys 25% of the buildings,
August 12. A delegation of three French destroyers, Chacal, Jaguar, and Leopard, leaves Gdynia,
August 15. The Day of the Polish Soldier is celebrated across the country.
August 19. Polish press informs that the total cost of Gwiazda Polski's the stratospheric flight is 360,000 zlotys. A record number of tourists comes to Hel for summer vacation,
August 20. A delegation of Polish Air Force, with General Ludomił Rayski, visits Sofia. Polish government announces plan of construction of a highway from Sandomierz, the capital of the Central Industrial Area, to Warsaw,
August 23. Mass anti-German demonstrations in Gdynia, Toruń, and other cities of Polish Pomerania, after a group of Nazi activists from Free City of Danzig threw a Polish railwayman Tadeusz Winnicki under a train, and as a result, the victims' legs were amputated. Sixteen passengers are seriously injured in a bus crash in Ożarów,
August 24. Polish Government confiscates a letter of Bishop Andrzej Szeptycki, which criticizes destruction of Orthodox churches,
September 5. According to government statistics, Gdynia is the most expensive Polish city, while Wilno is the cheapest,
September 7. Józef Beck leaves Warsaw, and via Berlin goes to Bern, for a session of the League of Nations,
September 8. Street clashes between Poles and Jews in Lida,
September 10. Polish press informs that construction of the new rail line, between Polish Upper Silesia, and Volhynia, has already started. The 400-kilometer line will go from Tarnowskie Góry to Lutsk, via Sandomierz, and Stalowa Wola. Three people die in a motorcycle accident near Lwów,
September 19. In Lutsk, a military parade takes place, to mark the end of the manoeuvres,
September 20. Additional units of the Polish Army secure Polish-Czechoslovak border,
September 21. Polish envoy to Prague, Kazimierz Papée, demands from government of Czechoslovakia solution of the problem of its Polish minority in the same way as the problem of German minority was solved,
September 22. In Trans-Olza, local Poles fight with Czechoslovakian police and army during street manifestations which demand the cession of the area to Poland. On the same day in Warsaw, 250 000 people demand the cession of Trans-Olza. It is the biggest demonstration of the Second Polish Republic,
September 23. The Soviet government states that if Polish troops enter Czechoslovakia, Moscow will void the Soviet–Polish Non-Aggression Pact,
September 24. At Warsaw's Royal Castle, the meeting of key Polish figures (Józef Beck, Edward Rydz-Śmigły, Ignacy Mościcki, Felicjan Sławoj Składkowski) takes place, during which the situation in Czechoslovakia is discussed,
September 25. In Zaleszczyki, a bridge over the Dniestr, connecting Poland and Romania, is opened,
September 26. A LOT plane from Warsaw to Budapest is not allowed to fly over Czechoslovakian territory. A clash between Czech soldiers and Poles from Trans-Olza takes place near Zebrzydowice,
September 27. A demonstration in Cieszyn, during which local Poles demand the cession of Trans-Olza. Construction of a car factory begins in Lublin,
September 28. Land communication between Poland and Czechoslovakia is closed,
September 30. Polish government demands the cession of Trans-Olza.
October 1. Czechoslovakian government agrees to Polish demands, and Trans-Olza is ceded to Poland, and demonstrations take place in several Polish cities,
October 6. Polish press speculates about possible creation of Zaolzie Voivodeship, which besides Trans-Olza, would include counties from Lesser Poland and Polish Upper Silesia,
October 7. Annual Wine Harvest Festival ends in Zaleszczyki,
October 10. Polish Army enters Bogumin and Karwina. Minister Józef Beck visits Trans-Olza. Ten new elementary schools are opened in Polesie,
October 11. Upon decree of President Ignacy Mościcki, Trans-Olza becomes part of Poland's Autonomous Silesian Voivodeship. Polish press speculates about annexation of Spis, and Orava – altogether 2,400 km2., with 120 000 inhabitants.
October 12. Józef Beck is awarded Order of the White Eagle, by President Ignacy Mościcki. Marshall Rydz-Śmigły visits Trans-Olza,
October 13. In Lwów, Ukrainian rally takes place, followed by Polish counter-demonstration,
October 14. Unsuccessful stratospheric flight of the Gwiazda Polski balloon. Plans of construction of a motorway Warsaw – Łódź are announced,
October 29. Nazi Germany government expels some 12 000 – 17 000 Jews with Polish citizenship to Poland,
November 24. All Freemasons Lodges in Poland are closed by the President of Poland. Prime Minister Felicjan Sławoj-Składkowski hands his resignation to the president Ignacy Mościcki, and Mościcki does not accept it,
December 2. Speaking in Sejm, Minister Eugeniusz Kwiatkowski describes a plan of development of Poland for the years 1939–1954,
December 5. Speaker of Polish Parliament, Vasyl Mudry of Ukrainian minority demands in his parliamentary speech autonomy for the Ukrainians. In the port of Danzig, Polish ship SS Tczew sinks and two people die,
December 8. Three people die in a car crash near Gniezno,
December 9. In Warsaw, a delegation of Polish civil servants and bank workers presents to the Army a PZL.37 Łoś, purchased with the money collected by them,
December 12. A movie theatre burns down in Gdynia,
December 13. Papal Nuncio Filippo Cortesi comes to Lwów. A seismic observatory of Warsaw University is opened in Warsaw,
December 16. According to the Polish press, there still are around 5,700 Jews, camping in Zbąszyń on the Polish-German border. A cold wave sweeps over Poland, the temperature in Lwów goes down to minus 21 degrees C,
December 18. Local elections in several Polish cities,
December 19. Three miners die in coal mine Kazimierz in Sosnowiec. A new rail and road bridge over the Vistula is opened in Płock,
December 21. Tatra Park of Nature is opened in Jaworzyna,
December 24. Fire in the left-wing of the Nieśwież Castle. Primate of Poland August Hlond addresses the nation through the radio,
December 27. SS Tczew, which sank in Danzig on December 5 is raised and transported to Gdynia for overhaul. Residents of Greater Poland celebrate 20th anniversary of Greater Poland Uprising,
December 28. Four people die hit by a train on a railroad crossing in Żyrardów,
April 24. In games of the Ekstraklasa, Cracovia Kraków beats at home Warta Poznań 5-2 (att. 3000), ŁKS Łódź ties at home with Wisła Kraków 0-0, Polonia Warszawa loses at home to Ruch Chorzów 0-3 (att. 5000), AKS Chorzów beats in Chorzów Warszawianka Warszawa 3–0, and Śmigły Wilno loses at home to Pogoń Lwów 0-1 (att. 5000). In international lawn tennis game in Warsaw, Poland beats Germany 6–1,
May 3. In several Polish cities and towns, the National Running Day is celebrated to commemorate the Polish Constitution. The biggest runs take place in Poznań and Slonim. Polish national soccer team leaves Poland, heading to Strasbourg for a World Cup game vs Brazil,
May 22. In an international football friendly, Poland beats in Warsaw Ireland 6-0 (att. 20 000),
May 25. In Milan, Italy beats Poland 3–2 in the second round of the Davis Cup,
May 26. In games of the Ekstraklasa, Śmigły Wilno beats at home Wisła Kraków 1-0 (att. 3000), Warszawianka Warszawa beats in Warsaw Pogoń Lwów 2-0 (att. 1500), Ruch Chorzów beats at home AKS Chorzów 3-2 (att. 13 000), Warta Poznań beats at home ŁKS Łódź 6–2, and Cracovia Kraków beats in Kraków Polonia Warszawa 3–2,
May 27. The national football team of Poland begins a training camp in Wągrowiec, preparing for the 1938 FIFA World Cup in France,
June 15. In Poznań, Polish boxing team beats France 14 -2,
June 19. In games of the Ekstraklasa, Warta Poznań ties at home 3–3 with Warszawianka (att. 4000), Ruch Chorzów beats at home Cracovia 4-0 (att. 10 000), ŁKS Łódź ties at home with Śmigły Wilno 1-1 (att. 4000), and Wisła Kraków beats in Kraków Pogoń Lwów 1-0 (att. 3000). In international track and field-friendly, Poland beats France 119,5 – 91,5. Ignacy Tłoczyński becomes lawn tennis champion of Poland, after beating Jozef Hebda,
June 26. In games of the Ekstraklasa, Cracovia beats at home Ruch Chorzów 3-2 (att. 7000), in Chorzów AKS beats Polonia Warszawa 1-0 (att. 6000), in Wilno, Śmigły beats ŁKS Łódź 4-0 (att. 4000), in Lwów Pogon beats Wisła Kraków 2–1, and in Warsaw, Warszawianka beats Warta Poznań 2-1 (att. 4000). KPW Poznań becomes handball champion of Poland, 2nd is AZS Warszawa, 3rd Cracovia, and 4th ŁKS Łódź.
August 1. In a two-day track and field match in Cernauti, Poland beats Romania 96 – 48. In a friendly football match, Ruch Chorzów beats at home SK Jugoslavija 5–2,
August 2. In a friendly football match, SK Jugoslavija beats ŁKS Łódź 2–0,
August 3. In a friendly football game in Warsaw, Poland loses to Hungaria Budapest 1-3 (att. 6000),
August 5. In a friendly football match in Łódź, Poland beats Hungaria Budapest 1–0,
August 7. In an international boxing match in Venice, Poland loses to Italy 4–12. In semifinal games of President of Poland's Football Cup, Lwów beats at home Łódź 3–2, and Kraków beats Warsaw 3-2 (in Warsaw). Syrena Warsaw becomes team cycling champion of Poland,
August 10. In an international track and field match in Oslo, Poland beats Norway 95–93. In Rimini, Poland ties 8–8 with Italy, in the second leg of a boxing match,
August 21. In games of the Ekstraklasa, Warta Poznań beats at home AKS Chorzów 4–3, Cracovia beats ŁKS Łódź 6–2, Wisła Kraków beats Warszawianka Warszawa 3–2, Polonia Warszawa beats Śmigły Wilno 3–0, and Ruch Chorzów beats Pogoń Lwów 3–1,
August 29. In an international lawn tennis game in Žilina, Czechoslovakia ties 3–3 with Poland. In games of the Ekstraklasa, ŁKS Łódź ties with Warta Poznań 0-0, Ruch Chorzów beats at home AKS Chorzów 4-2 (att. 15 000), Pogoń Lwów beats Warszawianka Warszawa 3-0 (att. 3500), Wisła Kraków beats Śmigły Wilno 4–1, and Cracovia ties with Polonia Warszawa 2-2. In qualifiers to the Ekstraklasa, Garbarnia Kraków beats at home Union Touring Łódź 2–1, and in Luck, local team PKS loses to Śląsk Świętochłowice 1-4 (att. 3000),
November 1. In a postponed game of the Ekstraklasa, Cracovia loses at home to Polonia Warszawa 0-2 (att. 4000),
November 5. In Poznań, Poland loses to Italy 1–6 in a wrestling match,
November 13. In international football game, which takes place in Dublin, Poland loses to Ireland 2–3, with goals by Ernest Wilimowski and Leonard Piątek. In Breslau, in a double boxing game, Germany beats Poland 12–4. In Toruń, Polish "B" boxing team beats Latvia 12–4,
Final matches of Polish boxing championship begin, with such teams, as Elektrit Wilno, IKP Łódź, Lechia Lwów, Okęcie Warszawa, Wisła Kraków, LSW Lublin, HCP Poznań, Goplania Inowrocław, Warta Poznań, Strzelec Janowa Dolina and IKB Świętochłowice. The championship is won by Warta Poznań,