The Congress of Milan: How Educators Voted to Erase Sign Language

• Introduction
• Chapter 1 The Golden Age of Gesture: Deaf Education Before 1880
• Chapter 2 The Paris Model: How Abbé de l'Épée Validated Sign Language
• Chapter 3 The American Sanctuary: Gallaudet, Clerc, and the Rise of ASL
• Chapter 4 Speech Above Thought: The Philosophical Roots of Oralism
• Chapter 5 Alexander Graham Bell and the Eugenics of Hearing
• Chapter 6 Orchestrating the Agenda: The Milan Executive Committee
• Chapter 7 Excluded Voices: Why Deaf Educators Were Denied a Vote
• Chapter 8 September 1880: Gathering at the Regio Istituto
• Chapter 9 Staged Demonstrations: The Illusion of Oral Success
• Chapter 10 Resolution One: The Declaration Against Sign Language
• Chapter 11 The Unanimous Illusion: Dissecting the Final Votes
• Chapter 12 The Lone Resisters: The American and British Opposition
• Chapter 13 Purging the Classrooms: Firing Deaf Teachers Worldwide
• Chapter 14 Confiscated Language: The Destruction of Sign Textbooks
• Chapter 15 Hands Behind Backs: Physical Punishment and Trauma in Oralist Schools
• Chapter 16 The Dark Age of Literacy: The Cognitive Toll of Forced Speech
• Chapter 17 Underground Signing: How Students Kept Language Alive
• Chapter 18 Institutionalized Audism: The Rise of Hearing Hegemony
• Chapter 19 The Linguistic Revolution: William Stokoe Proves Sign is Language
• Chapter 20 Deaf President Now: The Political Reawakening of 1988
• Chapter 21 Vancouver 2010: Reversing the Milan Decrees After 130 Years
• Chapter 22 Language Deprivation Syndrome: The Modern Legacy of Oralism
• Chapter 23 Technology, Cochlear Implants, and the New Assimilation
• Chapter 24 The Battle for Bimodal Bilingualism in Contemporary Classrooms
• Chapter 25 Reclaiming the Future: Preserving Sign Language as Human Heritage

In September 1880, a gathering of 164 educators, administrators, and experts assembled in the grand halls of the Regio Istituto dei Sordomuti in Milan, Italy. They were convened under the auspices of the Second International Congress on Education of the Deaf, tasked with determining the future course of instruction for millions of deaf children worldwide. Over the course of several days, through passionate debates, carefully orchestrated demonstrations, and politically biased maneuvering, the delegates brought the proceedings to a fateful vote. By an overwhelming majority, the congress passed a series of declarations that sought to outlaw the use of sign language in classrooms, proclaiming that oral speech—and speech alone—was superior, natural, and necessary for full human inclusion. With a single vote, a hearing majority decided to dismantle decades of successful bilingual education and strip a linguistic minority of its natural medium of expression.

What occurred in Milan was not merely a shift in pedagogical philosophy; it was an act of linguistic erasure. For much of the nineteenth century, deaf individuals experienced what many modern historians call a golden age. Supported by pioneering educators like Abbé de l'Épée in France and Thomas Hopkins Gallaudet and Laurent Clerc in the United States, sign language was recognized as a rich, complete, and highly efficient linguistic system capable of imparting complex intellectual and literary concepts. Deaf scholars, teachers, and intellectuals flourished, running schools, writing literature, and shaping their own culture. The Milan Congress systematically tore this foundation down, ushering in a dark age of oralism that suppressed sign language, systematically removed deaf teachers from their professions, and enforced speech training at the expense of true literacy, cognitive development, and human dignity.

The Congress of Milan: How Educators Voted to Erase Sign Language provides a definitive historical and sociopolitical account of this watershed moment and the century of destruction that followed. This book reconstructs the ideological, philosophical, and political forces that led to the 1880 resolutions, exposing how paternalism, nineteenth-century scientific racism, and early eugenicist thought aligned to create a dogmatic campaign against sign language. By dissecting the composition of the congress, the deliberate exclusion of deaf educators from voting power, and the theatrical, highly controlled demonstrations of "cured" deaf speakers, this work reveals how an illusion of unanimous professional consensus was manufactured to serve a hearing agenda of linguistic assimilation.

The reverberations of Milan extended far beyond the classrooms of 1880, shaping deaf lives for generations. For more than a century, young deaf children were forbidden from using their hands to communicate, subjected to physical punishments, and relegated to educational models that left countless individuals with severe language deprivation and diminished literacy. Yet, this history

To understand the full measure of what was lost in Milan in the autumn of 1880, one must first step back into the landscape of deaf education as it existed during the preceding decades. Throughout much of the nineteenth century, Europe and the Americas experienced a period that modern historians frequently designate as a golden age for deaf culture, literacy, and community life. Far from being viewed as broken vessels in need of auditory repair, deaf individuals were increasingly recognized as members of a distinct, visually organized linguistic minority. They were educated by literate, highly skilled instructors—many of whom were deaf themselves—and they graduated from residential institutions to become journalists, artists, mathematicians, tailors, printers, and political advocates.

This period of intellectual flourishing was not an accident of history. It was the direct result of an educational philosophy that prioritized the swift acquisition of real language over the grueling, uncertain labor of physical vocalization. Teachers during this era understood a basic cognitive reality: a child’s mind requires a functional, accessible language to develop abstract thought, retain information, and engage with the world. For a deaf child, visual signs provided an immediate, fully accessible pathway to intellectual maturity. Once a linguistic foundation was established through natural signs and methodical manual codes, reading and writing in the dominant national language followed as a secondary, entirely manageable task.

The contrast between this visual approach and the earlier historical reality of deaf people could not have been starker. For centuries prior to the late eighteenth century, the vast majority of deaf individuals lived in deep social isolation. Without access to a concentration of peers or formal schooling, most relied on rudimentary "home signs"—simple gestures created within individual families to convey basic needs. Legal codes stretching back to Justinian’s Roman Law often classified deaf individuals who could not speak as legal minors, incapable of inheriting property, making contracts, or executing legal wills. The dominant intellectual assumption, derived in large part from a narrow reading of Aristotle, was that speech was the sole vehicle of thought. If an individual could not speak, the reasoning went, they lacked the capacity for rational intellect.

The intellectual shift began quietly in the sixteenth and seventeenth centuries, driven by isolated tutors working with the deaf children of wealthy European aristocrats. Men like Pedro Ponce de León and Juan Pablo Bonet in Spain demonstrated that deaf noble heirs could be taught to read, write, and even articulate speech using manual alphabets and structured visual cues. Bonet’s 1620 treatise, the first book ever published on the education of the deaf, included detailed engravings of a one-handed manual alphabet. Yet these early efforts remained private, expensive, and largely proprietary. Tutors kept their methods secret to secure lucrative employment from wealthy families desperate to preserve their hereditary estates.

The true democratization of deaf education occurred when the locus of instruction shifted from private palaces to public, collective spaces. When deaf children were brought together in residential settings, something extraordinary happened: they pooled their individual gestures, home signs, and visual strategies, rapidly synthesizing them into rich, grammatically complex natural sign languages. The role of the enlightened educator was not to invent language for these children, but to observe, learn, and refine the visual language the children generated among themselves, using it as the primary medium of instruction.

By the mid-nineteenth century, this pedagogical model had created a thriving international network of schools. In cities across France, Britain, Ireland, the United States, Russia, and parts of Scandinavia, residential institutions operated as intellectual engine rooms. These were not mere asylum care facilities; they were rigorous academies. The curriculum in a typical high-class residential school mirrored that of hearing academies of the era, encompassing geography, world history, algebra, geometry, natural philosophy, literature, and religious studies.

Central to the success of this golden age was the composition of the teaching faculty. Unlike the post-1880 era, when deaf people were systematically excluded from the teaching profession, mid-nineteenth-century classrooms were staffed by a high proportion of deaf educators. In the United States, for instance, nearly half of all teachers of the deaf during the 1850s and 1860s were themselves deaf. These instructors served as vital linguistic and cultural models. They demonstrated to young pupils that deafness was not a barrier to professional authority, intellectual mastery, or social respectability. A young deaf student entering a residential academy did not see a room full of hearing adults attempting to force their vocal cords into strange shapes; they saw deaf adults commanding classrooms, writing books, and debating political theory.

The social ecosystem surrounding these schools was remarkably vibrant. Graduates established regional and national associations, published their own newspapers and journals, and organized political lobbies to defend their civil rights. In Paris, educated deaf citizens organized annual banquets throughout the 1830s, 1840s, and 1850s—celebrations of their community that brought together deaf intellectuals, politicians, writers, and sympathetic hearing scholars. These banquets were conducted entirely in sign language, with interpreters providing spoken translations for hearing guests. Speeches delivered at these events addressed grand philosophical themes: the nature of human language, the rights of citizens, and the obligation of the state to provide accessible education.

The literary output of deaf scholars during this era was substantial. Figures like Jean-Ferdinand Berthier, a deaf writer and academic dean at the National Institute for Deaf-Mutes in Paris, authored detailed historical treatises, biographies, and legal defenses of deaf citizens. Berthier was awarded the French Legion of Honor for his work, standing as a prominent public intellectual in mid-nineteenth-century Europe. Across the Atlantic, alumni of early American institutions published literary magazines like The Deaf-Mutes' Friend and founded robust civic organizations that monitored state legislation affecting their schools and welfare.

This broad intellectual flourishment relied on a sophisticated understanding of visual linguistics, even if the formal academic discipline of linguistics had not yet developed the terminology to fully describe it. Nineteenth-century manual educators made a clear distinction between several different modes of visual communication. First, there was the natural sign language of the deaf—a distinct, highly expressive visual language with its own spatial grammar and syntax. Second, there was fingerspelling, which used a manual alphabet to