More Than Trivia: Who Was the First Pope to Step Onto American Territory?

Blessed Pius IX.

Fascinating little account by George Weigle, First Things:

The history of popes in these United States is full of surprises.

And one of them, to begin at the beginning, includes the little-known fact that Blessed Paul VI was not the first pontiff to set foot on American territory, when he landed at newly-renamed John F. Kennedy International Airport on October 4, 1965. No, the first pope to plant a papal slipper on the sovereign territory of the United States was Blessed Pius IX, way back in 1849. Read more here.