Luwian language
By 1915, with the Luwian language known from cuneiform, and a substantial quantity of Anatolian hieroglyphs transcribed and published, linguists started to make real progress in reading the script. In the 1930s, it was partially deciphered by Ignace Gelb, Piero Meriggi, Emil Forrer, and Bedřich Hrozný. Its language was confirmed as Luwian in 1973 by J.D. Hawkins, Anna Morpurgo Davies and Günther Neumann, who corrected some previous errors about sign values, in particular emending the reading of symbols *376 and *377 from "i, ī" to "zi, za".