Question: In 1956, following the declaration of the Imre Nagy government of withdrawal of Hungary from the Warsaw Pact, Soviet troops entered the country and removed the government. Soviet forces crushed the nationwide revolt, leading to the death of an estimated 2,500 Hungarian citizens.
Is there an answer to this question: 250,000 of whose citizens dies after withdrawing from the Warsaw Pact?

Answer: unanswerable

Question: To make pulp from wood, a chemical pulping process separates lignin from cellulose fibres. This is accomplished by dissolving lignin in a cooking liquor, so that it may be washed from the cellulose; this preserves the length of the cellulose fibres. Paper made from chemical pulps are also known as wood-free papersnot to be confused with tree-free paper; this is because they do not contain lignin, which deteriorates over time. The pulp can also be bleached to produce white paper, but this consumes 5% of the fibres; chemical pulping processes are not used to make paper made from cotton, which is already 90% cellulose.
Is there an answer to this question: What is separated from the cellulose fibres?

Answer: lignin

Question: With his mazurkas and polonaises, Chopin has been credited with introducing to music a new sense of nationalism. Schumann, in his 1836 review of the piano concertos, highlighted the composer's strong feelings for his native Poland, writing that "Now that the Poles are in deep mourning [after the failure of the November 1830 rising], their appeal to us artists is even stronger ... If the mighty autocrat in the north [i.e. Nicholas I of Russia] could know that in Chopin's works, in the simple strains of his mazurkas, there lurks a dangerous enemy, he would place a ban on his music. Chopin's works are cannon buried in flowers!" The biography of Chopin published in 1863 under the name of Franz Liszt (but probably written by Carolyne zu Sayn-Wittgenstein) claims that Chopin "must be ranked first among the first musicians ... individualizing in themselves the poetic sense of an entire nation."
Is there an answer to this question: What year did Schumann review Chopin's piano concertos?

Answer: 1836

Question: Santa Barbara became the launching place for expeditions into New Mexico by Spanish conquistadors like: Antonio de Espejo, Gaspar Castano, Antonio Gutierrez de Umana, Francisco Leyba de Bonilla, and Vicente de Zaldivar. Several expeditions were led to find a shorter route from Santa Barbara to New Mexico. In April 1598, Juan de Onate finally found a short route from Santa Barbara to New Mexico which came to be called El Paso del Norte (The Northern Pass). The discovery of El Paso Del Norte was important for the expansion of El Camino Real de Tierra Adentro (The Inner Land Royal Road) to link Spanish settlements in New Mexico to Mexico City; El Camino Real de Tierra Adentro facilitated transport of settlers and supplies to New Mexico.
Is there an answer to this question: In which year was El Paso del Norte found?

Answer:
1598