The untold story of how America's Progressive-era war on smallpox sparked one of the great civil liberties battles of the twentieth century. At the turn of the last century, a powerful smallpox epidemic swept the United States from coast to coast. The age-old disease spread swiftly through an increasingly interconnected American landscape: from southern tobacco plantations to the dense immigrant neighborhoods of northern cities to far-flung villages on the edges of the nascent American empire. In Pox, award-winning historian Michael Willrich offers a gripping chronicle of how the nation's continentwide fight against smallpox launched one of the most important civil liberties struggles of the twentieth century. At the dawn of the activist Progressive era and during a moment of great optimism about modern medicine, the government responded to the deadly epidemic by calling for universal compulsory vaccination. To enforce the law, public health authorities relied on quarantines, pesthouses, and "virus squads"-corps of doctors and club-wielding police. Though these measures eventually contained the disease, they also sparked a wave of popular resistance among Americans who perceived them as a threat to their health and to their rights. At the time, anti-vaccinationists were often dismissed as misguided cranks, but Willrich argues that they belonged to a wider legacy of American dissent that attended the rise of an increasingly powerful government. While a well-organized anti-vaccination movement sprang up during these years, many Americans resisted in subtler ways-by concealing sick family members or forging immunization certificates. Pox introduces us to memorable characters on both sides of the debate, from Henning Jacobson, a Swedish Lutheran minister whose battle against vaccination went all the way to the Supreme Court, to C. P. Wertenbaker, a federal surgeon who saw himself as a medical missionary combating a deadly-and preventable-disease. As Willrich suggests, many of the questions first raised by the Progressive-era antivaccination movement are still with us: How far should the government go to protect us from peril? What happens when the interests of public health collide with religious beliefs and personal conscience? In Pox, Willrich delivers a riveting tale about the clash of modern medicine, civil liberties, and government power at the turn of the last century that resonates powerfully today.

This book examines the history of racial classifications in Puerto Rico censuses, starting with the Spanish censuses and continuing through the US ones. Because Puerto Rican censuses were collected regularly over hundreds of years, they are fascinating “test cases” to see what census categories might have been available and effective in shaping everyday ones. Published twentieth-century censuses have been well studied, but this book also examines unpublished documents in previous centuries to understand the historical precursors of contemporary ones. State-centered theories hypothesize that censuses, especially colonial ones, have powerful transformative effects. In contrast, this book shows that such transformations are affected by the power and interests of social actors, not the strength of the state. Thus, despite hundreds of years of exposure to the official dichotomous and trichotomous census categories, these categories never replaced the continuous everyday ones because the census categories rarely coincided with Puerto Rican’s interests.