Thuluth (, Ṯuluṯ or, Ḵaṭṭ-uṯ-Ṯuluṯ; , Sols; Turkish: Sülüs, from thuluth "one-third") is an Arabic script variety of Islamic calligraphy. The straight angular forms of Kufic were replaced in the new script by curved and oblique lines. In Thuluth, one-third of each letter slopes, from which the name (meaning "a third" in Arabic) comes. An alternative theory to the meaning is that the smallest width of the letter is one third of its widest part. It is an elegant, cursive script, used in medieval times on mosque decorations. Various calligraphic styles evolved from Thuluth through slight changes of form.

History

The greatest contributions to the evolution of the Thuluth script occurred in the Ottoman Empire in three successive steps that Ottoman art historians call "calligraphical revolutions":

Artists

The best known artist to write the Thuluth script at its zenith is said to be Mustafa Râkım Efendi (1757–1826), a painter who set a standard in Ottoman calligraphy which many believe has not been surpassed to this day.

Usage

Thuluth is mainly used to write the headings of surahs, Qur'anic chapters, and also for Arabic writings in mosques. Some of the oldest copies of the Qur'an were written entirely in Thuluth. Later copies were written in a combination of Thuluth and either Naskh or Muhaqqaq. After the 15th century Naskh came to be used exclusively. The script is used in the flags of Saudi Arabia and Afghanistan, where the text, Shahada al Tawhid, is written in Thuluth.

Style

An important aspect of Thuluth is the use of harakat ("hareke" in Turkish) to represent vowel sounds and of certain other stylistic marks to beautify the script. The rules governing the former are similar to the rules for any Arabic script. The stylistic marks have their own rules regarding placement and grouping which allow for great creativity as to shape and orientation. For example, one grouping technique is to separate the marks written below letters from those written above.

Scripts developed from Thuluth

Since its creation, Thuluth has given rise to a variety of scripts used in calligraphy and over time has allowed numerous modifications. Jeli Thuluth was developed for use in large panels, such as those on tombstones. The Muhaqqaq script was developed by widening the horizontal sections of the letters in Thuluth. The Naskh script introduced a number of modifications resulting in smaller size and greater delicacy. Tawqi is a smaller version of Thuluth. Ruq'ah was probably derived from Thuluth and Naskh, the latter itself having originated from Thuluth.

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