The book ""The Conquest Of The United States By Spain: A Lecture Before The Phi Beta Kappa Society Of Yale University, 1899"" written by William Graham Sumner in 1899 is a historical account that explores the relationship between Spain and the United States during the period of colonization. The author provides an in-depth analysis of the Spanish conquest of the United States, highlighting the impact of this event on the history of the country. The...