In 1928 during latinisation in the Soviet Union the Crimean Tatar Arabic alphabet was replaced by the Latin alphabet based on the Yañalif script. This alphabet contained a number of differences from the modern variant. Particularly, in letters Ь ь, Ƣ ƣ, N̡ ᶇ, Ɵ ɵ, X x, Ƶ ƶ, I i instead of modern Â â, Ğ ğ, I ı, İ i, Ñ ñ, Ö ö, and Ü ü.