On Monday 25 May, in the New Synod Hall, the Encyclical Letter “Magnifica Humanitas” by the Holy Father Leo XIV was presented. The document addresses the protection of the human person in the age of artificial intelligence and was signed on 15 May 2026 to mark the 135th anniversary of the promulgation of Pope Leo XIII’s Encyclical Letter Rerum Novarum.
Below we publish the address the Pope gave to those present during the presentation (available in English only) and the full text of the Encyclical (in Italian, French and English).
Presentation and promulgation of the Encyclical Letter -Magnifica humanitas- (25 May 2026)
Lettre encyclique du Saint-Père Léon XIV Magnifica Humanitas (15 mai 2026)
Encyclical Letter of His Holiness Leo XIV Magnifica Humanitas (15 May 2026)