 This contributed to the assimilation of the Hispanics into everyday society.According to an 1818 study by the renowned German ethnologist Fëdor Jagor entitled "The Former Philippines thru Foreign Eyes", not less than 1/3rd of the inhabitants of the island of Luzon were then mixed with varying degrees of Spanish ancestry and the vast majority of military personnel then had Latin-American origins.Spanish Philippines is the history of the Philippines from 1521 to 1898.