Sequoyah
He taught the syllabary to his daughter, Ayokeh (Ayoka). Then he tested it in front of a group of leaders. They said a word, he wrote it down, and then Ayokeh repeated them. Originally people thought it was witchcraft, but then they started liking his syllabary. Many Cherokee learned it and eventually became literate, which means they could read and write. In fact, more Cherokees could read and write better than nearby white people.