The work expresses a revisionism, criticism and demystification of the official liberal and post-1910 revolutionary Mexican history version from the pre-Hispanic civilizations, the New Spain, post-independence and post-revolutionary periods, which was culminated by the post-revolutionary governments and authors, which according to Vasconcelos acted in favor of national interests of the United States, particularly those who helped to propagate an "indigenist propaganda" and imported the "Anglo-Saxon Black Legend" to Mexico which attacked, denied and tried to wipe out all forms of Hispanidad and the Spanish cultural, religious and institutional legacy in Mexico. He accused 19th-century Mexican liberals of sowing the seeds of the hispanophobe by the influence of the United States. Vasconcelos affirmed that the history of Mexico had been manipulated by "strange hands," particularly in favor of the interests of the United States and England and to the detriment of Mexicans, Latin Americans and Spaniards, stating that most of the republican rulers in Mexico had been directly by and with the approval of Washington. Vasconcelos stated that they created a Mexican version of the Black Legend to blame the Spaniards for all the problems of Mexico, while the United States governments in collaboration with the British represented the real threat to Mexico and Spain and had a major influence in Mexican liberal governments.