 In 1995 the Ruthenian written language became standardized.The Baltic German naturalist and chemist Karl Ernst Claus, member of the Russian Academy of Science, was born in 1796 in Dorpat (Tartu), then in the Governorate of Livonia of the Russian Empire, now in Estonia.In 1844, he isolated the element ruthenium from platinum ore found in the Ural Mountains and named it with the neuter form of the Latin name for Rus'.