In the USSR, latinisation ( ) was the name of the campaign during the 1920s–1930s which aimed to replace traditional writing systems for numerous languages with systems that would use the Latin script or to create Latin-script based systems for languages that did not have a writing system. Almost all Turkic, Iranian, Uralic and several other languages were romanized, totaling nearly 50 of the 72 written languages in the USSR. There also existed plans to romanize Russian and other Slavonic languages as well, but in the late 1930s the latinisation campaign was canceled, and all newly romanized languages were converted to Cyrillic.