Writing systems introduced in the 1920s

notation of the Turkish language by means of a modified Latin alphabet

The New Turkic Alphabet, known in Turkic languages as Yañalif (Tatar: / , / ; ), is the first Latin alphabet used during the Latinisation in the Soviet Union in the 1930s for the Turkic languages. It replaced the Arabic script-based alphabets like Yaña imlâ used for Tatar in 1928, and was replaced by the Cyrillic alphabet in 1938–1940. After their respective independence in 1991, several former Soviet states in Central Asia switched back to Latin script, with slight modifications to the original Yañalif.

set of letters designed as the basis for Latin alphabets for the languages of Africa

Arabic-based orthography for Tatar

Teuthonista is a phonetic transcription system used predominantly for the transcription of (High) German dialects. It is very similar to other Central European transcription systems from the early 20th century. The base characters are mostly based on the Latin alphabet, which can be modified by various diacritics.

writing system used by a religious rebellion in Laos