Europe's Royal Families travelled to St Peter's Square in Vatican City to attend Pope Leo XIV's historic inauguration mass on ...

Pope Leo I tangled with Attila the Hun and won. Pope Leo III crowned Charlemagne as the first Holy Roman Emperor. This is the ...

The other symbolically important moment of the Mass is the representational rite of obedience to Leo: Whereas in the past all cardinals would vow obedience to the new pope, more recent papal ...

the first American pope in Church history wanted to communicate his continuity with Pope Leo XIII, who is best known for the “social justice” teachings in his famous 1891 encyclical Rerum Novarum.

As contemporary as they sound, these lines come from his 19th-century predecessor, Pope Leo XIII. The encyclical was entitled “Rerum Novarum,” after its opening words, which my prosaic Latin ...

In this colorized print from "La Ilustración Española y Americana," Pope Leo XIII directs a phonograph message to the American Catholic people on the occasion of his jubilee, in 1892.

As European society was grappling with the impact of the industrial revolution and the rise of socialist ideology in the late 1800s, Pope Leo XIII issued a papal encyclical that expressed empathy ...

he chose to make his namesake Leo XIII, who reigned a full 60 years before the Second Vatican Council. The choice was a masterstroke for a pope likely looking to avoid pressure to “resolve ...

Though Pope Leo XIV has been lauded for his advocacy in defense of immigrants and worker rights — his namesake, Leo XIII, who reigned from 1878 until 1903 is known as a historical Catholic ...

Pope Leo XIV earned his doctorate in canon law from Rome’s Pontifical University of St. Thomas Aquinas, where his thesis on the leadership of the Augustinian order may give insight into how the ...

“I would like this greeting of peace to resound in your hearts, in your families, and among all people, wherever they may be," he wrote ALBERTO PIZZOLI/AFP via Getty Pope Leo XIV shared his ...