What do modern multiverse theories and spiritualist séances have in common? Not much, it would seem. One is an elaborate scientific theory developed by the world’s most talented physicists. The other is a spiritual practice widely thought of as backward, the product of a mystical world view fading under the modern scientific gaze.

But Christopher G. White sees striking similarities. He does not claim that séances or other spiritual practices are science. Yet he points to ways that both spiritual practices and scientific speculation about multiverses and invisible dimensions are efforts to peer into the hidden elements and even the existential meaning of the universe. Other Worlds examines how the idea that the universe has multiple, invisible dimensions has inspired science fiction, fantasy novels, films, modern art, and all manner of spiritual thought reaching well beyond the realm of formal religion. Drawing on a range of international archives, White analyzes how writers, artists, filmmakers, televangelists, and others have used the scientific idea of invisible dimensions to make supernatural phenomena such as ghosts and miracles seem more reasonable and make spiritual beliefs possible again for themselves and others.

Many regard scientific ideas as disenchanting and secularizing, but Other Worlds shows that these ideas—creatively appropriated in such popular forms as C. S. Lewis’s Chronicles of Narnia, the art of Salvador Dalí, or the books of the counterculture physicist “Dr. Quantum”—restore a sense that the world is greater than anything our eyes can see, helping to forge an unexpected kind of spirituality.

How early American Catholics justified secularism and overcame suspicions of disloyalty, transforming ideas of religious liberty in the process.

In colonial America, Catholics were presumed dangerous until proven loyal. Yet Catholics went on to sign the Declaration of Independence and helped to finalize the First Amendment to the Constitution. What explains this remarkable transformation? Michael Breidenbach shows how Catholic leaders emphasized their church’s own traditions—rather than Enlightenment liberalism—to secure the religious liberty that enabled their incorporation in American life.

Catholics responded to charges of disloyalty by denying papal infallibility and the pope’s authority to intervene in civil affairs. Rome staunchly rejected such dissent, but reform-minded Catholics justified their stance by looking to conciliarism, an intellectual tradition rooted in medieval Catholic thought yet compatible with a republican view of temporal independence and church–state separation. Drawing on new archival material, Breidenbach finds that early American Catholic leaders, including Maryland founder Cecil Calvert and members of the prominent Carroll family, relied on the conciliarist tradition to help institute religious toleration, including the Maryland Toleration Act of 1649.

The critical role of Catholics in establishing American church–state separation enjoins us to revise not only our sense of who the American founders were, but also our understanding of the sources of secularism. Church–state separation in America, generally understood as the product of a Protestant-driven Enlightenment, was in key respects derived from Catholic thinking. Our Dear-Bought Liberty therefore offers a dramatic departure from received wisdom, suggesting that religious liberty in America was not bestowed by liberal consensus but partly defined through the ingenuity of a persecuted minority.

The Napoleonic wars did not end with Waterloo. That famous battle was just the beginning of a long, complex transition to peace. After a massive invasion of France by more than a million soldiers from across Europe, the Allied powers insisted on a long-term occupation of the country to guarantee that the defeated nation rebuild itself and pay substantial reparations to its conquerors. Our Friends the Enemies provides the first comprehensive history of the post-Napoleonic occupation of France and its innovative approach to peacemaking.

From 1815 to 1818, a multinational force of 150,000 men under the command of the Duke of Wellington occupied northeastern France. From military, political, and cultural perspectives, Christine Haynes reconstructs the experience of the occupiers and the occupied in Paris and across the French countryside. The occupation involved some violence, but it also promoted considerable exchange and reconciliation between the French and their former enemies.

By forcing the restored monarchy to undertake reforms to meet its financial obligations, this early peacekeeping operation played a pivotal role in the economic and political reconstruction of France after twenty-five years of revolution and war. Transforming former European enemies into allies, the mission established Paris as a cosmopolitan capital and foreshadowed efforts at postwar reconstruction in the twentieth century.

On June 15, 1888, a mere ninety-nine days after ascending the throne to become king of Prussia and German emperor, Frederick III succumbed to throat cancer. Europeans were spellbound by the cruel fate nobly borne by the voiceless Fritz, who for more than two decades had been celebrated as a military hero and loved as a kindly gentleman. A number of grief-stricken individuals reportedly offered to sacrifice their own healthy larynxes to save the ailing emperor.

Frank Lorenz Müller, in the first comprehensive life of Frederick III ever written, reconstructs how the hugely popular persona of “Our Fritz” was created and used for various political purposes before and after the emperor’s tragic death. Sandwiched between the reign of his ninety-year-old father and the calamitous rule of his own son, the future emperor William II, Frederick III served as a canvas onto which different political forces projected their hopes and fears for Germany's future. The book moves beyond the myth that Frederick’s humane liberalism would have built a lasting Anglo-German partnership, perhaps even preventing World War I, and beyond the castigations and exaggerations of parties with a different agenda. Surrounded by an unforgettable cast of characters that includes the emperor’s widely hated English wife, Vicky—daughter of Queen Victoria—and the scheming Otto von Bismarck, Frederick III offers in death as well as in life a revealing, poignant glimpse of Prussia, Germany, and the European world that his son would help to shatter.

From a major British political thinker and activist, a passionate case that both the left and right have lost their faith in ordinary people and must learn to find it again.

This is an age of polarization. It’s us vs. them. The battle lines are clear, and compromise is surrender.

As Out of the Ordinary reminds us, we have been here before. From the 1920s to the 1950s, in a world transformed by revolution and war, extreme ideologies of left and right fueled utopian hopes and dystopian fears. In response, Marc Stears writes, a group of British writers, artists, photographers, and filmmakers showed a way out. These men and women, including J. B. Priestley, George Orwell, Barbara Jones, Dylan Thomas, Laurie Lee, and Bill Brandt, had no formal connection to one another. But they each worked to forge a politics that resisted the empty idealisms and totalizing abstractions of their time. Instead they were convinced that people going about their daily lives possess all the insight, virtue, and determination required to build a good society. In poems, novels, essays, films, paintings, and photographs, they gave witness to everyday people’s ability to overcome the supposedly insoluble contradictions between tradition and progress, patriotism and diversity, rights and duties, nationalism and internationalism, conservatism and radicalism. It was this humble vision that animated the great Festival of Britain in 1951 and put everyday citizens at the heart of a new vision of national regeneration.

A leading political theorist and a veteran of British politics, Stears writes with unusual passion and clarity about the achievements of these apostles of the ordinary. They helped Britain through an age of crisis. Their ideas might do so again, in the United Kingdom and beyond.