The Second International Congress on Education of the Deaf was an international conference of deaf educators held in Milan, Italy in 1880. It is commonly known as "the Milan Conference or Milan Congress". After deliberations from September 6 to 11, 1880, the conference declared that oral education (oralism) was superior to manual education and passed a resolution banning the use of sign language in school.
After its passage in 1880, schools in European countries and the United States switched to using speech therapy without sign language as a method of education for the deaf. A formal apology was made by the board at the 21st International Congress on Education of the Deaf in Vancouver, BC, Canada, in 2010.