"The Elephant Clock", Folio from a Book of the Knowledge of Ingenious Mechanical Devices by al-Jazari; Calligrapher: Farrukh ibn `Abd al-Latif; Author:Badi al-Zaman ibn al-Razzaz al-Jazari (1136–1206) Date:A.H. 715/A.D. 1315. Metropolitan Museum of Art