sentences:  In early 1927, construction of a large chemical plant was initiated in the suburban village of Świerczków "", which is now a part of the industrial borough of Mościce, a district of the city.Before the outbreak of World War II, the population of Tarnów was 40,000, of which almost half were Jewish.On 28 August 1939, a Nazi saboteur conducted the Tarnów rail station bomb attack killing 20 civilians, two days before the invasion of Poland by Nazi Germany.