With this clue in his hand, he was able to identify and publish an alphabet of thirty letters, most of which he had correctly deciphered.

It's said that if they're correctly deciphered, they can give great power to whoever possesses them.

When it was published by Eugène Burnouf in 1836, through his realization that it included a list of the satrapies of Darius (repeated by Xerxes in nearly identical language), he was able to identify and publish an alphabet of thirty letters, most of which he had correctly deciphered.

Because essentially it's not like the cipher algorithm says bingo, I've correctly deciphered it.

It is a purported translation of an ancient Greek work on Egyptian hieroglyphs based on later Latin versions, all of them unfortunately ignorant of the true meanings of the ancient Egyptian script, which was not correctly deciphered until Champollion in the 19th century.

The inscription was correctly deciphered for the first time by Eugène Camoreyt:

For example, "festive, meathooks; finish second' would be correctly deciphered as "gala, hands; place" or "Callahan's Place.

With this clue in his hand, he identified and published an alphabet of thirty letters, most of which he had correctly deciphered.