East
Lithuanian is sparsely attested until 1547, when the first book in the language was printed. Efforts to develop a standard language in the late 19th century were dominated by speakers of the West High dialect spoken in German-ruled East Prussia. Among them was Jonas Jablonskis (1860–1930), whose orthography (based on the {{link=Latin alphabet">Latin alphabet with numerous diacritics) and grammar (1901) won official acceptance when Lithuania became independent. Lithuanian is renowned for its archaism among living Indo-European languages .