Differentiated book- It has a historical context with research of the time-Mother's Nursery Tales by Katharine Pyle.The purpose of realizing this historical context is to approach the understanding of a historical epoch from the elements provided by the text. Hence the importance of placing the document in context. It is necessary to unravel what its author or authors have said, how it has been said, when, why and where, always relating it to its historical moment.Pyle was born in Wilmington on November 22, 1863, the youngest of four children. His parents, William Pyle and Margaret Churchman Painter Pyle, belonged to the ancient Quaker families of Wilmington. The home environment has been described as warm and conducive to learning and creation. Katharine spent her entire life in the Wilmington area, except for four years in New York in the 1890s.Katharine Pyle was one of the most prolific authors in Delaware, having participated in the creation of more than 50 children's books, but little information has been published about her life. For anyone who dares to the rarefied air of collecting children's books, their works would be a challenging and rewarding goal.