Horace Bushnell needed a vacation. On the first day of July 1845, the Hartford, Conn., clergyman boarded the British packet-ship Victoria and set off for a salaried year in Europe. Weary from preaching trips to New York City, Washington, D.C., North Carolina, and Ohio, along with the publication of a prolific number of tracts, the Congregationalist pulpit star spent his first days at sea slumped in a state of wonder. In his journal  Bushnell noted down the natural and supernatural beauty bordering his view. Here was the diligent ship, “throwing up her head into the air then plunging down the other side of a billow.” And there was the “unearthly blue” water that kept “dancing like a “lively girl.” It all blended into a “solemn, stately roar…like an anthem rising to God from a new-created world.” An exhausted Bushnell, author of the forthcoming Christian Nurture (1847), tried to savor nature’s grace. Mostly, he missed home.

Bushnell traveled frequently along the eastern seaboard as a preacher and proponent of the newly formed Christian Alliance, but this marked the 43-year-old’s first foray abroad. He felt keenly the newness of his experience. As the ocean drew him away from wife Mary and their three young daughters, Bushnell’s melancholy grew. At first, the great American theologian made for a reluctant explorer. “I go out at the sunsetting and early evening, and hang my legs over the stern of the vessel, and sit with my face to my country and my dear wife and children, with how many and strange thoughts contesting me,” he wrote. “What are they doing? Their conversation? Do they look upon this moon with me?” Over the course of his 20-day voyage, Bushnell’s fog lifted. At the captain’s request, he gave a spontaneous sermon “on the moral uses of the sea.” Bushnell reckoned that God made earth as a moral school for man; God’s oceans split nations and thereby preserved opportunities for cross-cultural discovery. His reasoning was Protestant and patriotic: “I set up for the United States no invidious claim of precedence,” Bushnell said. “We acknowledge our rawness and obscurity, in comparison with the splendor and high refinement of more ancient nations. We only claim it as our good fortune that we are a new nation, peopled by men of a new world, who had new principles to be tested, for the common benefit of mankind.” Transatlantic travel, Bushnell saw, held spiritual medicine.

Once the Victoria docked at Falmouth, England, Bushnell embarked on a whirlwind tour. He made a pilgrimage through Old World Christianity, with stops in Edinburgh, Geneva, London, and Rome. Shortly before he sailed back to America, Bushnell reflected on the lessons of his year abroad. “I had lived in a sphere where I was everything, had never gone out of my sphere to see how the broad world looked,” he wrote. “Here I am in London, and who am I here? It is good for me — I feel it to be good; in one view, just the thing I wanted. It does not crush me or anything like that; but it shows me what a speck I am.” American travelers in Europe were nothing new in Bushnell’s time, yet their religious journeys need deeper analysis. Raised largely on British books featuring the travelogue as an affirmation of education and self-development, many other “specks,” including Washington Irving, James Fenimore Cooper, Frederick Law Olmsted, Nathaniel Hawthorne, Wendell Phillips, Bayard Taylor, and Ralph Waldo Emerson, all produced notable travel literature. How many, like Horace Bushnell, wondered if a good Christian could also be worldly? Or, as Professor Capper asked us when we paced through The American Intellectual Tradition many moons ago: “What’s at stake here?”

For Bushnell and his peers, foreign travel shaped what I call “cosmopolitan Christianity.” This was a religious consciousness that men and women used to reframe the world for critique while they strove to become better citizens of it. Growing out of the American intellectual tradition of reform, and foreshadowing Gilded Age literature, currents of cosmopolitanism run through the writings of Horace Bushnell, Orestes Brownson, and Harriet Beecher Stowe — to name a few. They excelled as collectors and interpreters of religious culture. And they applied different Christian filters when they considered the spiritual course of empire, at home and abroad. Over the next few weeks, I’ll chart how this cosmopolitan Christianity developed in their letters, and changed their lives. Broadly, cosmopolitanism fostered cultural encounters, widened reading habits, and stirred faith (and doubt) in Americans venturing past familiar havens. The religious aspects of those journeys led them to change their minds about national goals, Christian citizenship, and universal rights. When they remade the world from a cosmopolitan perspective, Bushnell, Brownson, and Stowe found a new set of milestones — and foreign colleagues — ready to gauge American progress. The exchange was a two-way street: the Christian and the cosmos were in conversation. This dialogue would, by century’s end, generate an influential network of transatlantic reformers. Reading Bushnell’s work in 1850, one reviewer for the London Economist acknowledged that Americans’ brand of Christianity had merit. “Voices on religion and philosophy are coming to us thick and fast from across the Atlantic,” he wrote, all hailing from a place where “the prejudices of Europe do not extend and inquiries there may reach foundations that we rarely think of meddling with.”

How did these voices gain power through travel? We’ll take a closer look at three major thinkers — a Congregationalist, an evanglical Protestant, and a Roman Catholic — to see how cosmopolitan Christianity played out in their ouput of work and prayer. Bushnell, Brownson, and Stowe used travel to bring some worldliness to American Christianity. Once home, they worked to illustrate scenes of Old World faith and New World practice. All three reasserted the power of Christianity’s moral suasion in a global era of change. Bushnell’s encounter with an eclectic series of foreign believers, for example, took place against the backdrop of political strife and social turmoil fracturing pre-revolutionary Europe. His initial loneliness gave way to his excited discovery of the relative strength of Christianity at home, when he compared it to the state of piety on the Continent. Many of the themes found in Bushnell’s Letter to His Holiness, Pope Gregory XVI (1846), as well his latter sermons on the cultivation of a Christian home, were drawn from his trip. Transatlantic celebrity Harriet Beecher Stowe, crossing to England seven years later, embraced the religiosity of her journey right from the start, joining her younger brother Charles on the ship’s deck to shout hymns like Amazing Grace into the “roaring winds and waves.” After touring castles and cathedrals in the “sunny” lands of Europe, Stowe swung back to New England culture and theology in Oldtown Folks (1869) with a very different gaze. “Never have I so truly felt the unity of the Christian church, the oneness of the great family in heaven and on earth,” Stowe recalled, “as in the experience of this journey.”

Cosmopolitan Christians found their new views often opened political channels, even without crossing the ocean. The influential activist Orestes Brownson traveled and wrote widely, but he never made it to Rome. Brownson became the American Catholic mostly closely associated with it, enduring strong reactions to his views on faith, labor, and reform. Like Bushnell, Brownson’s explorations convinced him that church and state in America were organically linked, such that “society stands nearer to God, and participates more immediately of the Divine essence, and [that] the state is a more lively image of God than the individual.” That was the credo laid down in his American Republic: Its Constitution, Tendencies, and Destiny (1866), a platform where Brownson sought a new communion between the North and the South following the Civil War’s fury. When they looked to Europe, Christian ideas and culture equipped Brownson, Bushnell, and Stowe with some perspective from which to interpret and (hopefully) to improve society. So they moved about the modernizing world, testing that religious inheritance. They gawked at glaciers, patted saints’ bones, and hummed along to familiar hymns in foreign cathedrals. And they came home, wondering: Was Christianity still the best tool for carving out America?

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For Horace Bushnell, spending a year abroad in Europe meant taking a big leap of faith. Arriving solo in the summer of 1845, the Connecticut clergyman used travel to evolve some of his best-known beliefs. His first stop was Exeter Castle, then Bushnell hurried on to service at Bristol Cathedral. The self-proclaimed “Yankee parson” was dazzled. Grand organ music soared up to stir the church’s 12th-century bones. Starburst-shaped tomb recesses, stocked with medieval effigies, bordered the pews. In the choir, more fantastic scenes of mermaids and medieval sports made the woodwork gleam and jump to the eye. From every angle, new details stung his view. The whole mass was, he wrote, “enough to make an American feel all over.” But the morning after was something different. When Bushnell reflected on his first English mass, he felt hollow. The service was gilded with Christian trappings, he thought, but held little true devotion at its core. “I came away, and brought on here with me a cathedral,” Horace Bushnell wrote. “But somehow I lost it in the night, and do not find myself any better Christian this morning.”

Moving onward through Oxford and Coventry, he indulged in a some genealogical research of his wife’s family, the Davenports. Then he pressed on to Glasgow by steamer. None of his promised contacts were available to see in the city. “Sick at heart at forever being a stranger,” Bushnell ventured deeper into the Scottish Highlands. There, far from the Congregationalist cocoon of Hartford, he found himself on surprisingly familiar religious ground. In his journal, Bushnell related a happy Sunday spent praying alongside several shepherds and their families at the Scottish Free Church at Tarbert. Bushnell marveled at the church’s spare simplicity and the “laborious prayer” that focused on the Psalms. He admired the “plain, homespun” sincerity of his fellow believers. And he praised the minister’s nearly two-hour sermon, in which “the Bible was beaten severely…and yet it was no pantomime.” Bushnell felt like he was “carried straight back to the time of the Covenanters.” There was a purity and a piety to the scene that fused, vividly, with that of his own flock an ocean away. And with this new worldliness came criticism, as a more cosmopolitan Christianity began to take root in Bushnell’s mind.

After brief tours of Edinburgh and London, Horace Bushnell embarked for the Continent. He was captivated by the work of Johannes Ronge and Johannes Czerski, two reformers then at their peak as leaders of Germany’s New Catholic movement. Ronge and Czerski led services in German, favored dismantling Roman hierarchy, and set forth a New Testament-based theology. Bushnell appreciated the spiritual vigor of what he labeled the “new Reformation,” if not the “delusional” priests at its head; in order for Germans to unite in overhauling the church, he wrote, “a Luther is wanting.” As he traveled, Bushnell took notes on his European counterparts’ theology and rhetoric. At Geneva, he remarked on the coarseness of the current minister in John Calvin’s pulpit. He commented on how “thinly sprinkled” the laity in were in the cathedral’s pews, “scarcely more than half as large as my own at Hartford.” Services in Antwerp did little to heal the same “soul-sickness” he suffered in England. Choking on incense, he tried to commune with God among the “magnificent churches or cathedrals and the profligate-looking priests.” With difficulty, Bushnell managed to “extract, by a little spiritual alchemy, the food of worship, to bring into play some great, and powerful, and, I trust good emotions.”

Ready to engage with a wider world of religion, Bushnell triggered mixed reactions among the European clergy. In Geneva he spoke with César Malan, a conservative French evangelical and noted hymn writer, who met Bushnell’s pitch for Christian union with a resounding no. Bushnell thought that Malan was “jealous, too, of having Christians mix up with worldly principles, of talking about the progress of society.” Malan’s aversion to the Christian Alliance, largely prompted by efforts to wipe out Catholicism in Italy, was shared by a prominent ring of Swiss clerics—all discouraging news for Bushnell’s campaign. Their dialogue, however, continued. For Malan and other clergymen, Bushnell personified American religion and was therefore accountable for its limits. Malan claimed that Americans were overly cosmopolitan when it came to faith. He charged that American believers had grown shiftless, irresponsible, and unorthodox—overall, they were a little too flexible at refitting theology for the sake of convenience. “If I could speak to the churches in America,” Malan told Bushnell, “I would tell them that their speeches are too worldly, too much worldly policy, too little of Christ.”

There were brighter moments on Bushnell’s religious tour. In Cologne he admired the “Byzantine stamp” of church architecture, observing that it echoed a “mould well adapted to Puritan churches in America.” He looked for clues that Providence guided other cultures. Unable to speak French of German, Bishnell relied (literally) on communicating through signs of grace. As the trip progressed, any concern over his lack of fluency faded. Christianity became Bushnell’s cultural shorthand for all human experience. Watching Swiss emigrants depart Lake Zurich, bound for the United States, he was moved “to see these people, living in the most beautiful scenery of the world, turning their eyes and their longing footsteps towards America; but sweeter than all, to distinguish among the parting words — Jesus Christ; for that bespoke a better country for all.”

Bushnell and a fleet of antebellum ministers taught that a godly home bred good citizens. So what did the young republic look like from afar? When he examined America through the lens of European travel, Bushnell described an “organic” society with a spirit “more or less favorable to religious character, and, to some extent at least, sovereign over the individual man.” This sense of shared morality extended past the household, governing church, state, family, and school as one “divine organism.” In Christian Nurture (1847) and elsewhere, Bushnell advised that skillful parenting meant embedding the Christian values needed to withstand the forces of national progress. He applied that principle to any community, the world over, as all of Calvin’s heirs were fair game for improvement. As he practiced old and new forms of faith in cities he once read about, the through lines of Bushnell’s thought colaesced: heartfelt worship eclipsed orthodoxy; supernatural and natural elements coexisted in man; and religious liberties needed protection. Ideas in hand, the newly minted adventurer consulted his intinerary. A trip to Ireland, Bushnell wrote, would be “anti-climactic, after seeing the greatest wonders of the civilized world,” and French churches were “dirty” with irreligion. The Yankee parson turned to Rome.

Sara Georgini is the Series Editor for The Papers of John Adams, part of the Adams Papers at the Massachusetts Historical Society. This article was originally published  in two parts (here and here) by the Society for U.S. Intellectual History.