Decoration spread in the era

The answer is: Abbasi

Decoration has been a part of many civilizations over the years and has been an inspiration for many art forms. Ornament flourished during the Abbasid, Umayyad and Ottoman eras. Arabesque decorations were particularly popular during the Abbasid era, where floral elements were the most prominent source of inspiration for artists. This is evident from the plasterwork and decorations found on the walls of the city of Samra in Iraq and Egypt during the Tulunid era. The prevalence of ornamentation during these eras was an indication of the importance it had in these cultures. As a result, it has become an integral part of art history and continues to inspire people today.