Francis Parkman, Jr. (September 16, 1823 - November 8, 1893) was an American historian, best known as author of The Oregon Trail: Sketches of Prairie and Rocky-Mountain Life and his monumental seven-volume France and England in North America. These works are still valued as historical sources and as literature. He was also a leading horticulturist, briefly a professor of Horticulture at Harvard University and author of several books on the topic. Parkman was a trustee of the Boston Athen um from 1858 until his death in 1893 Ren -Robert Cavelier de La Salle (1643-1687), one of the most legendary explorers of the New World, is best known for claiming the entire Louisiana Territory for France in 1682. Two years later, he was given the order to colonize and govern the great expanse of territory between Lake Michigan and the Gulf of Mexico. He set out from France with four ships but never reached his destination. Landing somewhere in East Texas, he and his men were ravaged by disease, weakened by hard labor, even gored by buffalo as they tried to locate the mouth of the Mississippi River, which was obscured by the sandy sameness of the Gulf coastline. In 1687, on a third attempt to locate the river by an overland route, La Salle was murdered by his own men in the desolate country between the Trinity and Brazos rivers. His body was never found. First published in 1869, La Salle and the Discovery of the Great West is the vivid, richly detailed story of that final grim expedition, told by America's foremost historian.