For which achievement is the reign of Shah Jahan known as the Golden Age of Mughal period?
The reign of Shah Jahan, the fifth emperor, between 1628–58 was the golden age of Mughal architecture. He erected several large monuments, the best known of which is the Taj Mahal at Agra, as well as the Moti Masjid, Agra, the Red Fort, the Jama Masjid, Delhi, and the Lahore Fort.