Background
Source: Wikipedia
Bartolomé de las Casas, OP (US: lahss KAH-səss; Spanish pronunciation: [baɾtoloˈme ðe las ˈkasas]); 11 November 1484 – 18 July 1566) was a Spanish lawyer, clergyman, writer, and activist best known for his work as a historian and social reformer. He arrived in Hispaniola as a layman, then became a Dominican friar. He was appointed as the first resident Bishop of Chiapas, and the first officially appointed "Protector of the Indians".

