leo xiii








noun

  1. Giovanni Vincenzo Pecci, 1810–1903, Italian ecclesiastic: pope 1878–1903.

noun

  1. original name Gioacchino Pecci. 1810–1903, pope (1878–1903). His many important encyclicals include Rerum novarum (1891) on the need for Roman Catholics to take action on various social problems
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