 In 2005, [[UNESCO]] proclaimed "The [[Mevlevi Order|Mevlevi]] [[Sama (Sufism)|Sama]] Ceremony" of [[Turkey]] as one of the [[Masterpieces of the Oral and Intangible Heritage of Humanity]].As [[Edward G. Browne]] noted, the three most prominent mystical Persian poets Rumi, [[Sanai]] and [[Farid al-Din Attar|Attar]] were all Sunni Muslims and their poetry abounds with praise for the first two caliphs [[Abu Bakr]] and [[Umar ibn al-Khattāb]].According to [[Annemarie Schimmel]], the tendency among [[Shia]] authors to anachronistically include leading mystical poets such as Rumi and Attar among their own ranks, became stronger after the introduction of [[Twelver Shia]] as the state religion in the [[Safavid Empire]] in 1501.