Complex sentence: During the reign of the Timurids, the golden age of Persian painting began, and Chinese influence continued, as Timurid artists refined the Persian art of the book, which combines paper, calligraphy, illumination, illustration and binding in a brilliant and colourful whole.
Split into simpler sentences: During the reign of the Timurids, the golden age of Persian painting was ushered. During this period Chinese influence continued, as Timurid artists refined the Persian art of the book, which combines paper, calligraphy, illumination, illustration and binding in a brilliant and colourful whole.