The ancient archeological site of Mahasthangarh is believed to date back as far as 700 BC and appears to have been engaged right up to the 1700s. Mahasthangarh is situated in the Shibganj Upzila of the Bogra District of Bangladesh, near the village of Mahasthan. It is the oldest urban-style fortified township discovered in Bangladesh to date, and includes a temple with the mausoleum of Shah Sultan Balkhi Mahisawar, a dervish (Muslim saint) of royal ancestry who voyaged to the area in the 14th century with the aim of converting the locals to the Islamic religion. The name of the place is taken from the words Mahasthan meaning a place of outstanding holiness, and garh, meaning fortress.