cover the entire field ("all-over design"). When the end of the field is reached, patterns may be cut off intentionally, thus creating the impression that they continue beyond the borders of the rug. This feature is characteristic for Islamic design: In the Islamic tradition, depicting animals or humans is prohibited even in a profane context, as Islam does not distinguish between religious and profane life. Since the codification of the Quran by Uthman Ibn Affan in 651 AD/19 AH and the Umayyad Abd al-Malik ibn Marwan reforms, Islamic art has focused on writing and ornament. The main fields of Persian rugs are frequently filled with redundant, interwoven ornaments, often in form of elaborate spirals and tendrils in a manner called infinite repeat. Design elements may also be arranged more elaborately. One typical oriental rug design uses a medallion, a symmetrical pattern occupying the center of the field. Parts of the medallion, or similar, corresponding designs, are repeated at the four corners of the field. The common Persian "Lechek Torūnj" (medaillon and corner) design was developed in Persia for book covers and ornamental book illuminations in the fifteenth century. In the sixteenth century, it was integrated into carpet designs. More than one medallion may be used, and these may be arranged at intervals over the field in different sizes and shapes. The field of a rug may also be broken up into different rectangular, square, diamond or lozenge shaped compartments, which in turn can be arranged in rows, or diagonally. In contrast to Anatolian rugs, the Persian carpet medaillon represents the primary pattern, and the infinite repeat of the field appears subordinate, creating an impression of the medaillon "floating" on the field. In most Persian rugs, the field of the rug is surrounded by stripes, or borders. These may number from one up to over ten, but usually there is one wider main border surrounded by minor, or guardian borders. The main border is often filled with complex and elaborate rectilinear or curvilinear designs. The minor border stripes show simpler designs like meandering vines. The traditional Persian border arrangement was highly conserved through time, but can also be modified to the effect that the field encroaches on the main border. This feature is often seen in Kerman rugs from the late nineteenth century, and was likely taken over from French Aubusson or Savonnerie weaving designs. The corner articulations are a particularly