Task: Question Understanding
Input (English): Passage: Within the region originally demanded from Czechoslovakia by Nazi Germany in 1938 was an important railway junction city of Bohumín. The Poles regarded the city as of crucial importance to the area and to Polish interests. On 28 September, Beneš composed a note to the Polish administration offering to reopen the debate surrounding the territorial demarcation in Těšínsko in the interest of mutual relations, but he delayed in sending it in hopes of good news from London and Paris, which failed to come. Beneš then turned to the Soviet leadership in Moscow, which begun a partial mobilisation in eastern Belarus and the Ukrainian SSR and threatened Poland with the dissolution of the Soviet-Polish non-aggression pact. Nevertheless, the Polish leader, Colonel Józef Beck believed that Warsaw should act rapidly to forestall the German occupation of the city. At noon on 30 September, Poland gave an ultimatum to the Czechoslovak government. It demanded the immediate evacuation of Czechoslovak troops and police and gave Prague time until noon the following day. At 11:45 a.m. on 1 October the Czechoslovak foreign ministry called the Polish ambassador in Prague and told him that Poland could have what it wanted. The Polish Army, commanded by General Władysław Bortnowski, annexed an area of 801.5 km² with a population of 227,399 people. The Germans were delighted with this outcome. They were happy to give up a provincial rail centre to Poland; it was a small sacrifice indeed. It spread the blame of the partition of Czechoslovakia, made Poland an accomplice in the process and confused the issue as well as political expectations. Poland was accused of being an accomplice of Nazi Germany - a charge that Warsaw was hard put to deny.
Question: what and when the region originally demanded from Czechoslovakia by Nazi Germany?
Output (English): span