In 1820 François Sudre, a musician and a music teacher, created a language based on the musical scale. For twenty years he worked to complete this auxlang. He offered it to the military first, calling it La Telephone. For a while his language was considered because it seemed codeable. When the government declined, he continued writing the language in the hopes people wouldn’t need to learn foreign languages. Solresol wouldn’t catch on to the degree Esperanto as a universal language, but some groups enjoy exploring it, even today.
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