Prithviraj Chauhan, ruler of Delhi, fended off a raid by Muhammad Ghori in 1191, he allowed the invader to return home to Afghanistan! Ghori returned the following year to defeat and kill Prithviraj. This led to the establishment of the Delhi Sultanate and opened up the rest of India to conquest. Over the next two centuries, the Turks would lay waste ancient cities, temples and universities in one of the most bloody episodes in human history. It is difficult to estimate exact numbers, but millions would have perished.
