The Pāla Empire was a Buddhist dynasty as well as one of the major middle kingdoms of India that ruled from Bengal in the eastern region of the Indian subcontinent. The Palas were often described by opponents as the Lords of Gauda. The name Pala (Modern Bengali: pal) means protector and was used as an ending to the names of all Pala monarchs. The Palas were followers of the Mahayana and Tantric schools of Buddhism. Gopala was the first ruler from the dynasty. He came to power in 750 in Gaur by a democratic election. This event is recognized as one of the first democratic elections in South Asia since the time of the Mahā Janapadas. He reigned from 750-770 and consolidated his position by extending his control over all of Bengal. The Buddhist dynasty lasted for four centuries (750-1120 AD) and ushered in a period of stability and prosperity in Bengal. They created many temples and works of art as well as supported the Universities of Nalanda and Vikramashila. Somapura Mahavihara built by Dharmapala is the greatest Buddhist Vihara in the Indian Subcontinent.
The empire reached its peak under Dharmapala and Devapala. Dharmapala extended the empire into the northern parts of the Indian Subcontinent. This triggered once again the power struggle for the control of the subcontinent. Devapala, successor of Dharmapala, expanded the empire to cover much of South Asia and beyond. His empire stretched from Assam and Utkala in the east, Kamboja (modern day Afghanistan) in the north-west and Deccan in the south. According to Pala copperplate inscription Devapala exterminated the Utkalas, conquered the Pragjyotisha (Assam), shattered the pride of the Huna, and humbled the lords of Pratiharas, Gurjara and the Dravidas.
The death of Devapala ended the period of ascendancy of the Pala Empire and several independent dynasties and kingdoms emerged during this time. However, Mahipala I rejuvenated the reign of the Palas. He recovered control over all of Bengal and expanded the empire. He survived the invasions of Rajendra Chola and the Chalukyas. After Mahipala I the Pala dynasty again saw its decline until Ramapala, the last great ruler of the dynasty, managed to retrieve the position of the dynasty to some extent. He crushed the Varendra rebellion and extended his empire farther to Kamarupa, Orissa and Northern India.
The Pala Empire can be considered as the golden era of Bengal. Never had the Bengali people reached such height of power and glory to that extent. Palas were responsible for the introduction of Mahayana Buddhism in Tibet, Bhutan and Myanmar. The Palas had extensive trade as well as influence in south-east Asia. This can be seen in the sculptures and architectural style of the Sailendra Empire (present-day Malaya, Java, Sumatra). The Pala Empire eventually disintegrated in the 12th century under the attack of the Sena dynasty.