The History of the Norman Conquest of England: Its Causes and Its Results (1867–1879) is a six-volume study of the Conquest by Edward A. Freeman. Recognised by critics as a major work of scholarship on its first publication, it has since proved unpopular with readers, many of whom were put off by its enormous length and copious detail. Academics have often criticized it for its heavily Whig treatment of the subject, and its glorification of Anglo-Saxon political and social institutions at the expense of their feudal successors, but its influence has nevertheless been profound, many Anglo-Norman historians of modern times having come around to some of Freeman's main conclusions.