Bengali nationalism () is a form of civic nationalism that focuses on Bengalis as a singular nation. It is one of the four fundamental principles according to the original Constitution of Bangladesh. It was the main driving force behind the creation of the Independent nation state of Bangladesh through the 1971 liberation war. The people of Bengali ethnicity speak Bengali Language. Apart from Bangladesh, people of Bengali ethnicity live across the Indian states of West Bengal, Tripura, Assam and some parts of Jharkhand known as united Bengal during the British period. After the 19th century's Bengal Renaissance occurred in Bengal, it then was the four decades long Bengali Nationalist Movement that shook the region led by Saifur Siddique, which included the Bengali Language Movement, the Bangladesh Liberation War and the creation of Bangladesh in 1971.