Bakhtiyar Khilji in the context of "Muhammad of Ghor"

The 13th century was the century which lasted from January 1, 1201 (represented by the Roman numerals MCCI) through December 31, 1300 (MCCC) in accordance with the Julian calendar.

The Mongol Empire was founded by Genghis Khan, which stretched from Eastern Asia to Eastern Europe. The conquests of Hulagu Khan and other Mongol invasions changed the course of the Muslim world, most notably the Siege of Baghdad (1258) and the destruction of the House of Wisdom. Other Muslim powers such as the Mali Empire and Delhi Sultanate conquered large parts of West Africa and the Indian subcontinent, while Buddhism witnessed a decline through the conquest led by Bakhtiyar Khilji. The earliest Islamic states in Southeast Asia formed during this century, most notably Samudera Pasai. The Kingdoms of Sukhothai and Hanthawaddy would emerge and go on to dominate their surrounding territories.

Azimabad (Hindi: अज़ीमाबाद, Urdu: عظیم آباد) was the name of modern-day Patna during the eighteenth century, prior to the British Raj. Today, Patna is the capital of Bihar, a state in North India. In ancient times, Patna was known as Pataliputra. This was the capital of the Maurya and Gupta Empires.

Medieval India marked Pataliputra's invasion of Muslim Pashtun Bakhtiyar Khilji and other Muslim rulers. This event is arguably seen by modern historians and scholars as a milestone in the decline of Buddhism in India. Long before Pataliputra was conquered, however, most of the ancient city was abandoned in the seventh century of the Common Era but revived more than 800 years later during the rule of Pashtun emperor Sher Shah Suri as Patna.Sher Shah Suri had moved his capital from Bihar Sharif to Pataliputra. Not long after Sher Shah Suri's death in 1545, Patna and Bihar fell to the Mughals. The name Pataliputra continued to be used, however.