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1 ene 1868 año - The Conference of Superintendents and Principals of American Schools for the Deaf and Dumb is founded at the urging of Edward Miner Gallaudet.
Añadido al timeline:
History of special education
By
emeline
12 ago 2019
0
0
2720
fecha:
1 ene 1868 año
Ahora mismo
~ 157 years ago
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