Question: Who is the author of a children's history book that discusses a trade route that discusses a trade route that existed from the 16th to the 19th centuries?

<P0-S0> Story of the Negro by Arna Bontemps is a children's history book which was a Newbery Honor recipient in 1949. <P0-S1>  The non-fiction book begins with a history of major African civilizations such as the Ghana and Mandingo Empires. <P0-S2>  The horrors of the Atlantic slave trade are described, together with the causes and conditions of slavery in America, the Haitian Slave Revolt, and the Underground Railroad. <P0-S3>  Several influential black leaders are examined, including Frederick Douglass, Harriet Tubman, and W. E. B. Du Bois. <P0-S4>  Revised editions of the book extend the history through the late 1960s. <SEP> <P1-S0> Miran is an ancient oasis town located on the southern rim of the Taklamakan Desert in Xinjiang, Northwest China. <P1-S1>  It lies on the famous trade route known as the Silk Road where the Lop Nur desert meets the Altun Shan mountains. <P1-S2>  Two thousand years ago a river flowed down from the mountain and Miran had a sophisticated irrigation system. <P1-S3>  Now the area is a sparsely inhabited, dusty region with poor roads and minimal transportation. <P1-S4>  Archaeological excavations since the early 20th century have uncovered an extensive Buddhist monastic site that existed between the 2nd to 5th centuries AD, as well as the Miran fort, a Tibetan settlement during the 8th and 9th centuries AD. <SEP> <P2-S0> The history of chocolate in Spain is part of the culinary history of Spain as understood since the 16th century, when the colonisation of the Americas began and the cocoa plant was discovered in regions of Mesoamerica, until the present. <P2-S1>  After the conquest of Mexico, cocoa as a commodity travelled by boat from the port of Nueva España to the Spanish coast. <P2-S2>  The first such voyage to Europe occurred at an unknown date in the 1520s. <P2-S3>  However it was only in the 17th century that regular trade began from the port of Veracruz, opening a maritime trade route that would supply the new demand from Spain, and later from other European countries. <SEP> <P3-S0> The Atlantic slave trade or transatlantic slave trade involved the transportation by slave traders of enslaved African people, mainly from Africa to the Americas, and then their sale there. <P3-S1>  The slave trade used mainly the triangular trade route and its Middle Passage, and existed from the 16th to the 19th centuries. <P3-S2>  The vast majority of those who were enslaved and transported in the transatlantic slave trade were Africans from central and western Africa, who had been sold by other West Africans to Western European slave traders (with a small number being captured directly by the slave traders in coastal raids), who brought them to the Americas. <P3-S3>  The South Atlantic and Caribbean economies especially were dependent on the supply of secure labour for the production of commodity crops, making goods and clothing to sell in Europe. <P3-S4>  This was crucial to those western European countries which, in the late 17th and 18th centuries, were vying with each other to create overseas empires.