Question: How many years after his father flew Spitfires was Brown born? Passage 1:Brown was born on 15 April 1948, in Tangier, Morocco. His father flew Spitfires during World War II and joined civil aviation in the post war period, flying for Gibraltar Airways and British European Airways. He was educated at Merchant Taylors' School, an all-boys public school in Hertfordshire. He then matriculated into St Catherine's College, Oxford to study history. In 1966, he graduated from the University of Oxford with a Bachelor of Arts (BA) degree in Modern History. This was later promoted to Master of Arts (MA Oxon) as per tradition. He remained at St Catherine's to complete a Diploma in Art History. He then undertook post-graduate research at the Courtauld Institute of Art and completed his Doctor of Philosophy (PhD) degree.
 Passage 2:He had an exceptional gift for languages and mastered Latin and Greek very early; in his edition of Rhodanthe et Dosiclès, he included a Greek poem that he wrote when he was 16 years old. In 1615, his friend Jacques-Philippe de Maussac, in dedicating his De lapidum virtutibus to Gaulmin, called him a “pentaglot,” knowing, besides Latin and Greek, Hebrew, Arabic, and Turkish. In 1639, Scottish mathematician James Hume, comparing Gaulmin to Pico della Mirandola, praised him for also knowing Persian and Armenian. In 1648, Balthazar Gerbier also credited him with the knowledge of Italian and Spanish. He learned Arabic first with Étienne Hubert, royal physician and professor of Arabic at the Collège de France, and then under Gabriel Sionita, a Maronite who arrived in Paris in 1614 and who succeeded Hubert. Gaulmin was taught Hebrew by a converted Jewish man, Philippe d'Aquin, who in 1610 was named a professor of Hebrew at the Collège de France. A letter from Nicolas-Claude Fabri de Peiresc, dated 1635, indicates that Gaulmin had at his service “Hazard, student from Lebanon” (“le sieur Hazard, estudiant au mont Liban”), the last name also spelled “Hazand,” “Hazaed,” or “Hazaid”; the name of the author indicated in the translation of the Livre des lumières (“David Sahid of Ispahan, capital city of Persia) is doubtless that of this man.
 Passage 3:Smith assumed that workers could be paid as low as was necessary for their survival, which was later transformed by David Ricardo and Thomas Robert Malthus into the "iron law of wages". His main emphasis was on the benefit of free internal and international trade, which he thought could increase wealth through specialisation in production. He also opposed restrictive trade preferences, state grants of monopolies and employers' organisations and trade unions. Government should be limited to defence, public works and the administration of justice, financed by taxes based on income. Smith was one of the progenitors of the idea, which was long central to classical liberalism and has resurfaced in the globalisation literature of the later 20th and early 21st centuries, that free trade promotes peace. Smith's economics was carried into practice in the 19th century with the lowering of tariffs in the 1820s, the repeal of the Poor Relief Act that had restricted the mobility of labour in 1834 and the end of the rule of the East India Company over India in 1858.

Output: 1