In the summer of A.D. 325, more than 300 bishops gathered in Nicaea — located in modern-day northern Turkey — to promulgate a common Christian creed, settle Christological disputes that arose from the Arian heresy, and promote unity in the Church.

Pope Leo XIV spoke with Russian President Vladimir Putin in a phone call Wednesday afternoon.

Pope Leo XIV met with the National Italian American Foundation on Wednesday and blessed their work in continuing the spiritual and cultural legacy of their ancestors.

In his first prayer intention video of his papacy, Pope Leo XIV has asked the faithful to pray that the world might grow in compassion during the month of June.

Pope Leo XIV on Sunday blessed the cyclists of the Giro d’Italia before the last leg of the multistage international race, telling them they are all welcome in the Catholic Church.

Pope Leo XIV honored Cardinal in Pectore Iuliu Hossu, Romanian Greek Catholic bishop and “pastor and martyr of the faith” under communism, commemorated Monday at the Vatican for saving thousands of Jews during World War II.

Pope Leo XIV on Monday said Christian families are called to be missionaries of the Gospel to new generations, especially in light of a widespread “privatization” of faith preventing many people from approaching the Church.

The Vatican Library is the custodian of a major part of humanity’s literary heritage.

Pope Leo XIV urged French Catholics to embark on a profound spiritual renewal by following the example of three beloved saints as France commemorated the centenary of their canonization.

Pope Leo XIV declared marriage is “not an ideal but the measure of true love between a man and a woman” during the Jubilee of Families, Children, Grandparents, and the Elderly on Sunday.

Pope Leo XIV gave the following homily on Sunday, June 1, for the Jubilee of Families, Children, Grandparents, and the Elderly on St. Peter's Square at the Vatican.

Pope Leo XIV has praised an international bioethics summit in Rome for advancing an “authentically human” approach to science, urging researchers to pursue truth grounded in the dignity of the human person.

Pope Leo XIV ordained 11 new priests for the Diocese of Rome on Saturday during a Mass at St. Peter’s Basilica, urging them to live lives that are “transparent, visible, credible” in service to God’s people.

The Church in the Netherlands is gaining momentum thanks to the “creative minority” of young people rediscovering the Catholic faith, Cardinal Willem Eijk said.

Pope Leo XIV encouraged the Anabaptist (Mennonite) movement to live with love the call to Christian unity and the mandate to serve others.

Pope Leo XIV on Friday stated that authentic peace “takes shape from the ground up” when the differences and conflicts they entail “are not set aside but acknowledged, understood, and surmounted.”

Cardinal Willem Eijk on Friday said the Pontifical Academy for Life should give more attention to the bioethical issues linked to “gender affirming” therapies and “transgender” treatments.

More than 60,000 pilgrims from 120 countries will be in Rome this weekend to participate in the Jubilee of Families, Children, Grandparents, and the Elderly taking place from Friday, May 30, to Sunday, June 1.

The Vatican’s Dicastery for Promoting Integral Human Development and Caritas Internationalis joined forces this week to address the impact of an “unjust global system” that makes rich nations wealthier at the expense of poorer nations.

Pope Leo XIV has appointed Cardinal Robert Sarah as his special envoy for the celebrations taking place in France commemorating the 400th anniversary of the apparitions of St. Anne to the Breton peasant Yvon Nicolazic.

World-class cyclists will greet Pope Leo XIV and circle Vatican City on Sunday before embarking on the final lap of the Giro d’Italia, a multistage bicycle race that concludes in Rome.

When the new pope appeared on the balcony of St. Peter’s on May 8, his choice of the name Leo signaled the direction he intends to take on pressing moral issues, including artificial intelligence.

At the end of Wednesday’s general audience, Pope Leo XIV turned his attention to the people suffering the devastating consequences of war, especially in Ukraine and Gaza.

Pope Leo XIV held the second general audience of his pontificate today in which he reflected on the parable of the good Samaritan.