Right-to-left

In a right-to-left, top-to-bottom script (commonly shortened to right to left or abbreviated RTL), writing starts from the right of the page and continues to the left.

Arabic, Hebrew and Persian are the most widespread RTL writing systems in modern times. As usage of the Arabic script spread, the repertoire of 28 characters used to write Arabic language was supplemented to accommodate the sounds of many other languages such as Persian, Pashto, etc. While the Hebrew alphabet is used to write Hebrew language, is also used to write other Jewish languages such as Yiddish.

Several languages have both Arabic RTL and non-Arabic LTR writing systems. For example, Sindhi is commonly written in Arabic and Devanagari scripts, and a number of others have been used. Kurdish may be written in Arabic, Latin, Cyrillic or Armenian script.

Syriac and Mandaean (Mandaic) scripts are derived from Aramaic and are written RTL. Samaritan is similar, but developed from Proto-Hebrew rather than Aramaic. Many other ancient and historic scripts derived from Aramic and inherited its right-to-left direction.

Thaana appeared around 1600 CE. Most modern scripts are LTR, but the African scripts N'Ko (1949), Mende Kikakui (19th century), and Adlam (1980s) were created in modern times and are RTL.

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