The Vigenère cipher as known today is not what Blaise de Vigenère proposed in his Traité de Chiffres (1586). The scheme known as "the Vigenere cipher" today became popular by Dlandol (1793). Vigenère's name was associated with it by Kerckhoffs (1883) in a classified description of polyalphabetic ciphers. While Kerckhoffs did not mean to identify the inventor, his work was so influential that the term "Vigenère cipher" took root in the vocabulary of cryptology. See my new article "Who Made "the Vigenère Cipher" as Known Today?" at Academia.edu. (I may have misunderstood the term "Published Papers" at Academia.edu. So, this is uploaded as "Draft.")
I made additional remarks in "Did Beaufort Really Use the Beaufort Cipher?"
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