Article: Philadelphia's importance and central location in the colonies made it a natural center for America's revolutionaries. By the 1750s, Philadelphia had surpassed Boston to become the largest city and busiest port in British America, and second in the British Empire, behind London. The city hosted the First Continental Congress before the American Revolutionary War; the Second Continental Congress, which signed the United States Declaration of Independence, during the war; and the Constitutional Convention (1787) after the war. Several battles were fought in and near Philadelphia as well.

Question: How many Revolutionary War battles were fought around Philadelphia?
Ans: Several


Article: The second half of the 20th century to the present has seen a gradual shift towards improved human rights for Aboriginal people. In a 1967 referendum over 90% of the Australian population voted to end constitutional discrimination and to include Aborigines in the national census. During this period many Aboriginal activists began to embrace the term "black" and use their ancestry as a source of pride. Activist Bob Maza said:

Question: When did human rights for Aboriginal people begin to improve?
Ans: The second half of the 20th century


Article: In 1873, one of the first papers in modern medicine on the subject tried to explain the pathophysiology of the disease while one in 1872, concluded that asthma can be cured by rubbing the chest with chloroform liniment. Medical treatment in 1880, included the use of intravenous doses of a drug called pilocarpin. In 1886, F.H. Bosworth theorized a connection between asthma and hay fever. Epinephrine was first referred to in the treatment of asthma in 1905. Oral corticosteroids began to be used for this condition in the 1950s while inhaled corticosteroids and selective short acting beta agonist came into wide use in the 1960s.

Question: When did inhaled corticosteroids and short acting beta agonist start being used? 
Ans: in the 1960s


Article: Throughout history, many rulers, empires and nations have oppressed their Jewish populations or sought to eliminate them entirely. Methods employed ranged from expulsion to outright genocide; within nations, often the threat of these extreme methods was sufficient to silence dissent. The history of antisemitism includes the First Crusade which resulted in the massacre of Jews; the Spanish Inquisition (led by Tomás de Torquemada) and the Portuguese Inquisition, with their persecution and autos-da-fé against the New Christians and Marrano Jews; the Bohdan Chmielnicki Cossack massacres in Ukraine; the Pogroms backed by the Russian Tsars; as well as expulsions from Spain, Portugal, England, France, Germany, and other countries in which the Jews had settled. According to a 2008 study published in the American Journal of Human Genetics, 19.8% of the modern Iberian population has Sephardic Jewish ancestry, indicating that the number of conversos may have been much higher than originally thought.

Question: According to the American Journal of Human Genetics, what percentage of modern Iberian population has Sephardic Jewish ancestry?
Ans:
19.8%