How the West (Except for the U.S.) Ended Slavery by Thomas DiLorenzo

"Greatest Emancipations is an historical account of how all the nations of the Western world – except for the U.S. – ended slavery peacefully by utilizing multiple strategies. These strategies, implemented by the British, French, Spanish, Dutch, Danes, and others, included slave rebellions, abolitionist campaigns to gain public support for abolition, election of antislavery politicians, encouragement and assistance of runaway slaves, raising private funds to purchase the freedom of slaves, and the use of taxpayer funds to buy the freedom of slaves." (Emphasis in the original.)

Slavery ended in Puerto Rico the way the book describes, in a relatively peaceful manner, with several dozen prominent leaders and a society adapting to change over time. That the U.S of part of A. didn't go that route, and that U.S. historians would rather have the exception be the rule, is at the heart of what should be a non-controversy.