Pope Leo XIV's election as the first U.S.-born leader of the Catholic Church elevated him to the rare position of being an American citizen who now is also a foreign head of state.

Former British Prime Minister Boris Johnson was born in New York to British parents in 1964. He left the U.S. as a young boy ...

“Americanism” has often been called a “phantom heresy”, blamed on a French translation of a biography of Father Isaac Hecker, ...

To convey how all-encompassing the Roman Catholic Church was during the Middle Ages, the historian R.W. Southern once offered ...