Leo XIII

'Rerum Novarum'

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"Rerum Novarum," from Leo XIII. Leo XIII (1810-1903), natus Gioacchino Pecci, italice papa.

'The Leonine Encyclicals'

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Vincenzo Gioacchino Raffaele Luigi Pecci was born March 2, 1810, and became Pope Leo XIII on February 20, 1878. His reign was one of the longest in history, during which he produced a total of eighty-six encyclicals-a record approached by no other pope be