Nativizing language and literacy education for populations in the Caucasus and Central Asian regions of the old empire was a more complicated task. In part, the difficulty stemmed from efforts under tsarism to use differences in dialect to divide native peoples in these regions. In addition, in some cases the languages most widely spoken had not yet developed a writing system. Thus, part of nativizing education meant deciding which language should be used in school, and which system (for example, Cyrillic, Roman, or Arabic script, or something different altogether) should be used to write it.