The Great Mughals

In the 16th and 17th centuries they ruled over India, Pakistan, and most of Aafghanistan, with 100 million subjects, 5 times the number of their rivals, the Ottomans, and they rivaled the Ming Dynasty in the arts. During this period they built the marble masterpiece the Taj Mahal. This was Islam's rule at its most powerful and majestic, defining Islam at its most tolerant and electic - forbidding forcible conversion to their faith.
Source - author William Dalrymple.
(too bad today's fanatics can't appreciate their history)