... Las Casas interrupted work. in the book [A. Historia de las Indias] only send to the Council of the Indies in Madrid three long letters (in 1531, 1534 and 1535), in which he accused people and institutions of the sin of oppressing the Indian, particularly through the Encomienda system, After various adventures in Central America, where his ideas about the natives' treaty invariably [regularly] brought him into conflict: with the Spanish authorities, Las Casas wrote De only mode (1537; Unique way to attract all peoples to true religion " ), in which he exposes the doctrine of the peaceful evangelization of the Indian. Along with the Dominicans, he then used 1. Based on these documents, state one action Bartolomể de Las Casas took to address the problems taond by Native Americans.

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