The minimalist, angular kufic script was the first style of Arabic calligraphy to appear on monuments. It then developed in the 5th / 11th century to become foliated and to include floral ornamentation on the tips of the letters, such as seen on the maqsura (the space reserved for the caliph or imam) in the Great Mosque of Kairouan. Although kufic script – with its horizontal and vertical lines – perfectly complemented a number of architectural features in buildings, especially pillars and supports, from the 6th / 12th century monuments were also decorated with other styles of Arabic calligraphy such as the more lenient naskhi script, as seen on the Khanqah (hostel) of Sultan Baybars in Egypt.