In 1971, "Amar Shonar Bangla" became the national anthem of Bangladesh. It was written – ironically – to protest the 1905 Partition of Bengal along communal lines: cutting off the Muslim-majority East Bengal from Hindu-dominated West Bengal was to avert a regional bloodbath. Tagore saw the partition as a cunning plan to stop the independence movement, and he aimed to rekindle Bengali unity and tar communalism. "Jana Gana Mana" was written in "shadhu-bhasha", a Sanskritised form of Bengali, and is the first of five stanzas of the Brahmo hymn "Bharot Bhagyo Bidhata" that Tagore composed. It was first sung in 1911 at a Calcutta session of the Indian National Congress and was adopted in 1950 by the Constituent Assembly of the Republic of India as its national anthem.