context: The earliest geometric shapes in Islamic art are those eight shapes and aids inside squares in the Aqba bin Nafi Mosque in Tunisia, which dates back to the year 221 AH / 836 AD, and since then it has spread throughout the Islamic world. 23] The next stage of developing Islamic engineering motifs began with the spread of the six and eight stars after their appearance in the year 265 AH / 879 AD in the Ahmed bin Tulun Mosque in Cairo, so they were widely used in the Islamic world, and appeared in the Kharakan Towers in Persia 459 AH / 1067 CE, And in the Al-Jayoushi Mosque in Egypt in 477 AH / 1085 CE. In the year 478 AH / 1086AD, the decorations of the Seven and Decathlon neighborhood appeared in the Jami Mosque in Isfahan, and after that the Decathlon Neighborhood spread in the Islamic world except Andalusia. Then the nine, eleven, and thirteenth neighborhood neighbors also appeared in Isfahan in the year 490 AH / 1098 AD; but they were used only rarely outside Persia and Central Asia. In the year 617 AH / 1220 AD, the eighteen and twelve motifs appeared in the Aladdin Mosque in Konya, as used in the Abbasid palaces in Baghdad ten years later, and spread thereafter. [23] Then the sixteen rib motifs appeared in the Hassan Sadaka Mosque in Cairo in the year 715 AH / 1321 AD, in the Sultan Hassan Mosque in 764 AH / 1363 AD, and in the Alhambra Palace in Andalusia in the eighth century AH. Finally, fourteen rib motifs appeared at the Jami Mosque in Fatehpur Sikri in India at the end of the sixteenth century AD. [23] [lower-alpha 5]
question: When did Islamic motifs begin?
answers.text: 836 AD