Bartolomé de Las Casas
In 1515 he went to Hispaniola, and from there to Spain to defend the native people of the Americas. From 1517 to 1523, and with the title Protector of the Indians, he tried to develop a model settlement in northern Venezuela to protect the native people but the experiment failed. From there, he went to Hispaniola, joining the Dominican Order (an order of Catholic priests) in 1523.