Pope Leo XIV is expected to sign his first encyclical on May 15, according to Vatican sources cited by the German Catholic news agency KNA, with the document – provisionally titled Magnifica Humanitas – set to address artificial intelligence, international peace and what the Holy See describes as a crisis in international law.
The date of publication has not been officially confirmed by the Vatican Press Office, and the title remains provisional. No draft text has been released. The encyclical will nonetheless constitute the first major magisterial document of the pontificate, and the choice of date, were it to be confirmed, would align Leo XIV with a tradition of social teaching stretching back to his namesake’s 1891 encyclical Rerum Novarum.
