The Milan Conference of 1880 almost destroyed sign language because it officially banned the use of signs in schools for deaf children across Europe and North America, declaring that deaf students must learn to speak and lip-read instead. At this international congress held in Milan, Italy, educators and administrators voted overwhelmingly to adopt the “oral method”—a teaching approach that prohibited sign language entirely—which forced generations of deaf children into a system that denied them their natural, most accessible form of communication. This single vote created a crisis that lasted for nearly a century, pushing sign language underground and nearly erasing it from deaf communities and culture.
The consequences were immediate and severe. Deaf children who attended schools after the Milan Conference were punished for signing, sometimes physically, and forced to develop speech skills many could never fully master. For example, a deaf child in France after 1880 could no longer use French Sign Language at school, even though that language came naturally to them; instead, they spent years struggling to produce sounds they couldn’t hear, often falling behind in academics because the teaching method focused on speech rather than actual learning. This created a generation of deaf people who were isolated from their own language and from each other, breaking the chain of sign language transmission that had been unbroken for centuries.
Table of Contents
- What Was the Milan Conference and Why Did Educators Vote to Ban Sign Language?
- How Did the Oralism Movement Harm Deaf Children and Their Development?
- What Happened to Deaf Culture and Sign Language During the Oralism Era?
- How Did the Suppression of Sign Language Affect Deaf Families and Parenting?
- What Were the Long-Term Consequences of the Oralism Ban?
- When Did Sign Language Begin to Make a Comeback?
- What Does the Milan Conference Teach Us About Deaf Education Today?
- Conclusion
What Was the Milan Conference and Why Did Educators Vote to Ban Sign Language?
The Milan Conference of 1880 was an international congress on deaf education attended by hearing educators, administrators, and a few deaf individuals from Europe and North America. The conference organizers had a clear agenda: to determine the best method for educating deaf children, and the dominant voices at the conference—mostly hearing men with little actual experience in deaf education—argued loudly for the “oral method.” They believed that deaf children should be taught to speak and read lips, not sign, because they viewed spoken language as superior and sign language as a barrier to “normal” society. The conference passed a series of resolutions that effectively criminalized sign language in schools, declaring it an obstacle to progress and assimilation. The voting was not unanimous, which reveals something important about the debate even then.
The American representatives, many of whom ran schools that successfully used sign language alongside speech training, voted against the ban. They understood from direct experience that sign language was not an obstacle but a tool for learning, communication, and social development. However, their voices were outnumbered, and the conference’s majority vote—which reflected the prejudices and assumptions of the time rather than actual evidence—became the standard imposed across the Atlantic. This wasn’t based on research showing that oralism worked better; it was based on the belief that deaf people should be forced to fit into hearing society, even if it meant denying them the language their brains naturally acquired.
How Did the Oralism Movement Harm Deaf Children and Their Development?
The oralism movement that followed the Milan Conference created an educational crisis for deaf children. Schools that had previously taught sign language alongside speech training were forced to eliminate signs entirely, which meant that deaf children lost their primary access to information and knowledge. A deaf child in Italy or France after 1880 would sit in a classroom where the teacher spoke, but because the child couldn’t hear the words and wasn’t allowed to sign, the child often understood little of what was being taught. Without sign language, these children had no way to ask questions, participate in discussions, or learn complex concepts—the classroom became a place of isolation rather than learning.
The harm extended beyond academics into cognitive and social development. Research conducted decades later, after sign language was restored in some schools, showed that deaf children who used sign language early had better academic outcomes, stronger self-esteem, and more successful social integration than deaf children who were forced into oral-only education. The irony is profound: the system designed to make deaf children more “normal” and better integrated into society actually isolated them more deeply, preventing them from developing fluent communication in any language. Many deaf adults who went through oral-only schools reported feeling deeply confused, frustrated, and cut off from both deaf and hearing communities—they couldn’t sign fluently because they weren’t allowed to learn, and they couldn’t speak fluently because they couldn’t hear the sounds they were trying to produce. This created a lost generation of deaf people without native fluency in any language.
What Happened to Deaf Culture and Sign Language During the Oralism Era?
Sign language didn’t disappear entirely during the oralism era—it went underground. Deaf people continued to sign outside of schools, in their homes and communities, and at social gatherings, but it was no longer the respected, taught language it had been before 1880. Parents of deaf children, influenced by educators and medical professionals who insisted that signing was harmful, often refused to teach their deaf children to sign. This broke the natural chain of sign language transmission that had existed for generations; typically, deaf children learn sign language from their deaf parents, and deaf culture passes down through families. But after the Milan Conference, many hearing parents of deaf children were told that signing would prevent their children from learning to speak, so they forbade it at home.
Deaf children whose first language should have been American Sign Language, French Sign Language, or British Sign Language instead grew up without fluent access to any fully-developed language. The suppression of sign language also nearly destroyed deaf schools as centers of deaf culture. Before oralism, deaf schools served not just an educational function but a cultural one; they were places where deaf children learned from deaf teachers and older deaf students, where deaf culture was preserved and transmitted, and where deaf identity was valued. After the Milan Conference, many schools replaced their deaf teachers with hearing teachers trained in oralism, cutting deaf children off from deaf role models and community leaders. A deaf child attending school in 1900 had almost no chance of meeting a deaf adult or learning anything about deaf history, culture, or achievements—knowledge that was essential for developing a healthy deaf identity. This cultural suppression lasted until the 1960s and 1970s, when deaf activists began reclaiming sign language and pushing back against the oralism movement.
How Did the Suppression of Sign Language Affect Deaf Families and Parenting?
The oralism era created confusion and hardship for hearing parents of deaf children, who were told by professionals that they should focus exclusively on developing their child’s speech at any cost. Parents faced an impossible choice: follow the medical and educational establishment’s advice to prevent their child from signing, or allow their child to sign and risk being seen as negligent or harmful to their child’s development. Many parents chose to follow the professional advice and prevented their child from learning sign language—sometimes successfully pushing their child toward speech, but more often creating a situation where the child had limited communication with family. A hearing mother in 1920 might have been told by her child’s doctor that she should never use sign language with her deaf son, that she should instead make him lip-read and speak, even though this meant the mother and son struggled to understand each other at home and the child fell behind in school.
The burden on deaf children was profound. A deaf child with hearing parents faced pressure to develop speech skills that might never feel natural, while simultaneously being denied access to the language they could acquire easily and naturally. The comparison is important: a deaf child who learned sign language as a first language—either because they had deaf parents or because they were allowed to learn it in school—could then learn spoken language and lip-reading as additional skills, building on a strong linguistic foundation. But a deaf child forced into oral-only education had no solid foundation in any language, which made learning subsequent languages much harder. This wasn’t a matter of parents being uncaring; it was a matter of parents being misled by authorities who insisted they knew what was best, when in fact the approach was causing harm.
What Were the Long-Term Consequences of the Oralism Ban?
The effects of the Milan Conference lasted far longer than anyone at that conference could have predicted. For nearly a hundred years, sign language was marginalized in schools, official institutions, and even families. Deaf children born in the 1900s, 1920s, 1950s, and even the 1970s in many countries grew up without access to sign language in schools, which meant they missed the critical period for acquiring a first language during early childhood. This had cascading consequences: students with limited language access had lower educational achievement, lower employment prospects, and higher rates of depression and social isolation. A warning here is important: the long-term effects of language deprivation can be difficult to reverse. Deaf people who grew up in oral-only systems and didn’t learn sign language until adulthood often never achieved native-like fluency in sign language, and they sometimes struggled with literacy in written language as well.
The damage to their communication abilities lasted their entire lives. The Milan Conference also delayed scientific understanding of sign language and deaf development by decades. Because educators in the oralism era viewed sign language as a problem rather than a solution, there was little research into how sign language worked, how deaf children learned language, or what the actual benefits of bilingualism (sign language plus written/spoken language) might be. It wasn’t until the 1960s, when linguist William Stokoe proved that American Sign Language was a full, complex language with its own grammar, that the tide began to turn. Before that, most educators genuinely believed that sign language was a primitive, simplified form of communication with no real grammatical structure—a belief that had no basis in fact but was accepted as truth precisely because oralism had suppressed the study of sign language for so long. This represents one of the great failures of the educational establishment: a century-long suppression of knowledge, masked by the assumption that they were acting in children’s best interests.
When Did Sign Language Begin to Make a Comeback?
The recovery of sign language began slowly in the 1960s, accelerated in the 1970s, and became more widespread in the 1980s and 1990s. In the United States, the American School for the Deaf in Hartford, Connecticut, which had been founded in 1817 specifically as a school where sign language was used and celebrated, gradually restored sign language to its classrooms after decades of suppression. Countries across Europe similarly began to recognize and restore national sign languages. For example, Sweden officially recognized Swedish Sign Language as a minority language in 1981, and other Scandinavian countries soon followed, opening the door for sign language to be taught in schools. However, this recovery was uneven and incomplete; in many countries and many schools, the shift from oralism to bilingualism happened slowly and faced resistance from educators and administrators who had built their careers on oralism.
Today, the understanding of how deaf children acquire language has changed dramatically, but the legacy of the Milan Conference persists in some places. Most modern deaf education programs now recognize that bilingualism—sign language plus spoken/written language—is the most effective approach for deaf children’s development. Early exposure to sign language gives deaf children a strong first language, which actually helps them learn written language and, when possible, to develop speech skills as a second language. Countries that adopted bilingual approaches earlier (like Sweden and Denmark) now have better literacy outcomes for deaf students than countries that continued oral-only approaches longer. The evidence is clear, but it took a century of harm to children to establish what should have been obvious from the start: that deaf children need access to a full, natural language in order to thrive cognitively, socially, and academically.
What Does the Milan Conference Teach Us About Deaf Education Today?
The Milan Conference of 1880 serves as a cautionary tale about the dangers of imposing hearing norms on deaf people without understanding deaf experience and deaf language. The conference happened because the educators who dominated it believed they knew what was best for deaf children without actually listening to deaf adults, without studying how deaf children actually learned, and without respecting the language that deaf communities had developed. Today, as we work to support deaf and hard-of-hearing children, the lesson from Milan is that deaf people themselves—deaf parents, deaf educators, and deaf adults—must be central to decisions about deaf education and deaf services. Including deaf voices doesn’t mean eliminating speech therapy or other supports; it means recognizing that sign language is not an obstacle but a foundation, and that deaf children deserve access to both.
The Milan Conference also reminds us that professional authority, even when it’s wrong, can shape society for generations. Teachers, doctors, and administrators who had good intentions but incorrect beliefs about deaf language and learning convinced families, governments, and institutions to suppress sign language, and nearly all of them believed they were acting in the best interests of deaf children. This happened not because there was evidence that oralism was better, but because oralism fit the cultural assumptions of the time: that deaf people should become as much like hearing people as possible, that sign language was primitive, and that deaf culture was something to be eliminated rather than celebrated. Understanding this history is important for parents and educators today, because it shows us how easy it is to be convinced that harmful practices are helpful when those practices are endorsed by authorities and align with cultural biases.
Conclusion
The Milan Conference of 1880 almost destroyed sign language because it officially banned signs from schools across Europe and North America, forcing deaf children into an educational system that denied them their natural language. The conference happened because hearing educators believed that oralism (spoken language only) was superior to sign language, and this belief—backed by no scientific evidence—became policy that lasted nearly a hundred years. Deaf children who grew up during the oralism era suffered in school, fell behind academically, struggled to develop fluent communication in any language, and were cut off from deaf culture and deaf community.
Today, sign language has been largely restored in deaf education, and bilingual approaches (sign language plus spoken/written language) are recognized as the most effective method for supporting deaf children’s development. But the journey back from the suppression that began in Milan took generations, and the harm done during those decades reminds us why it matters to include deaf people in decisions about deaf education and why it matters to value sign language as a rich, complete language that deserves respect and support. For families of deaf children, the history of the Milan Conference underscores the importance of early sign language exposure as a foundation for all other learning and communication skills.