Question:
Leonardo di ser Piero da Vinci (Italian: [leo'nardo di ,ser 'pje:ro da (v)'vintSi] ( listen); 15 April 1452 - 2 May 1519), more commonly Leonardo da Vinci or simply Leonardo, was an Italian Renaissance polymath whose areas of interest included invention, painting, sculpting, architecture, science, music, mathematics, engineering, literature, anatomy, geology, astronomy, botany, writing, history, and cartography. He has been variously called the father of palaeontology, ichnology, and architecture, and is widely considered one of the greatest painters of all time. Sometimes credited with the inventions of the parachute, helicopter and tank, he epitomised the Renaissance humanist ideal.
In 1466, at the age of fourteen, Leonardo was apprenticed to the artist Andrea di Cione, known as Verrocchio, whose bottega (workshop) was "one of the finest in Florence". He apprenticed as a garzone (studio boy) to Andrea del Verrocchio, the leading Florentine painter and sculptor of his day (and would do so for 7 years). Other famous painters apprenticed or associated with the workshop include Domenico Ghirlandaio, Perugino, Botticelli, and Lorenzo di Credi. Leonardo would have been exposed to both theoretical training and a vast range of technical skills, including drafting, chemistry, metallurgy, metal working, plaster casting, leather working, mechanics and carpentry as well as the artistic skills of drawing, painting, sculpting and modelling.  Much of the painted production of Verrocchio's workshop was done by his employees. According to Vasari, Leonardo collaborated with Verrocchio on his The Baptism of Christ, painting the young angel holding Jesus' robe in a manner that was so far superior to his master's that Verrocchio put down his brush and never painted again, although this is believed to be apocryphal. Close examination reveals areas that have been painted or touched-up over the tempera using the new technique of oil paint; the landscape, the rocks seen through the brown mountain stream and much of the figure of Jesus bearing witness to the hand of Leonardo. Leonardo may have been the model for two works by Verrocchio: the bronze statue of David in the Bargello and the Archangel Raphael in Tobias and the Angel.  By 1472, at the age of twenty, Leonardo qualified as a master in the Guild of Saint Luke, the guild of artists and doctors of medicine, but even after his father set him up in his own workshop, his attachment to Verrocchio was such that he continued to collaborate with him. Leonardo's earliest known dated work is a drawing in pen and ink of the Arno valley, drawn on 5 August 1473.
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What was his first painting

Answer:
Verrocchio on his The Baptism of Christ,


Question:
Andrew Carnegie ( kar-NAY-gee, but commonly  KAR-n@-ghee or  kar-NEG-ee; November 25, 1835 - August 11, 1919) was a Scottish-American industrialist, business magnate, and philanthropist. Carnegie led the expansion of the American steel industry in the late 19th century and is often identified as one of the richest people (and richest Americans). He became a leading philanthropist in the United States and in the British Empire. During the last 18 years of his life, he gave away about $350 million to charities, foundations, and universities--almost 90 percent of his fortune.
Among his many philanthropic efforts, the establishment of public libraries throughout the United States, Britain, Canada and other English-speaking countries was especially prominent. In this special driving interest and project of his he was inspired by meetings with philanthropist Enoch Pratt (1808-1896). The Enoch Pratt Free Library (1886) impressed Carnegie deeply; he said, "Pratt was my guide and inspiration".  Carnegie turned over management of the library project by 1908 to his staff, led by James Bertram, (1874-1934). The first Carnegie library opened in 1883 in Dunfermline. His method was to build and equip, but only on condition that the local authority matched that by providing the land and a budget for operation and maintenance. To secure local interest, in 1885, he gave $500,000 to Pittsburgh for a public library, and in 1886, he gave $250,000 to Allegheny City for a music hall and library; and $250,000 to Edinburgh for a free library. In total Carnegie funded some 3,000 libraries, located in 47 US states, and also in Canada, Britain, Ireland, Australia, New Zealand, South Africa, the West Indies, and Fiji. He also donated PS50,000 to help set up the University of Birmingham in 1899.  As Van Slyck (1991) showed, the last years of the 19th century saw acceptance of the idea that free libraries should be available to the American public. But the design of the idealized free library was the subject of prolonged and heated debate. On one hand, the library profession called for designs that supported efficiency in administration and operation; on the other, wealthy philanthropists favored buildings that reinforced the paternalistic metaphor and enhanced civic pride. Between 1886 and 1917, Carnegie reformed both library philanthropy and library design, encouraging a closer correspondence between the two.
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What led him to do this work?

Answer:
he was inspired by meetings with philanthropist Enoch Pratt (1808-1896).