The Biharis () is a demonym given to the inhabitants of the Indian state of Bihar. Bihari people can be separated into three main Indo-Aryan ethnolinguistic groups, Bhojpuris, Maithils and Magadhis. They are also further divided into a variety of hereditary caste groups. In Bihar today, the Bihari identity is seen as secondary to caste/clan, linguistic and religious identity but nonetheless is a subset of the larger Indian identity. Biharis can be found throughout India, and in the neighbouring countries of Nepal, Pakistan and Bangladesh. During the Partition of India in 1947, many Bihari Muslims migrated to East Bengal (renamed to East Pakistan; later became Bangladesh). Bihari people are also well represented in the Muhajir people of Pakistan (formerly West Pakistan) because of Partition. History Bihar is one of the longest inhabited places in the world with a history going back to the Neolithic age. Since that time, Biharis have long been involved in some of the most important events in South Asian history. Biharis were the founders of many great empires based out of Magadh including the Nanda Empire, Maurya Empire and the Gupta Empire. All of these empires had their capitals in Pataliputra (modern-day Patna). Two of India's major religions also have their origins in Bihar. Gautama Buddha who was the founder of Buddhism, achieved enlightenment in Bodh Gaya, Bihar. Mahavira, the founder of Jainism, was born in Vaishali in North Bihar. Bihar is home to two UNESCO World Heritage Sites, the Mahabodhi temple at Bodh Gaya where the Buddha attained nirvana and the Buddhist monastic university of Nalanda. Until at least the 13th century, there was still a significant number of Buddhists in Bihar who mainly followed the Mahayana and Vajrayana schools until they were assimilated into Hinduism. However many village temples still retain idols of the Buddha and Bodhisattvas. The founder of Sur Empire, Sher Shah Suri was born in Sasaram, a city in the state of Bihar in present-day India into a Pashtun family. During the period of Islamic rule, much of Bihar was under the sway of local Zamindars or chieftains who maintained their own armies and territories. These chieftains retained much of their power until the arrival of the British East India Company. Martial tradition Many academics including Dirk Kolff and Walter Hauser have noted that Bihar has a history of armed activism among its peasantry. For centuries, Purbiya soldiers from Western Bihar