The Vaishnava Movement, a 15th-century religio-cultural movement under the leadership of Srimanta Sankardeva and his disciples, has provided another dimension to the Assamese culture. A renewed Hinduisation in local forms took place, which was initially greatly supported by the Koch and later by the Ahom Kingdoms. The resultant social institutions such as "namghar" and "sattra" - "the Vaishnav Hermitage" have become part of the Assamese way of life. The movement contributed greatly towards language, literature, and performing and fine arts. On many occasions, the Vaishnav Movement attempted to introduce alien cultural attributes and modify the way of life of the common people. "Brajavali", a language specially created by introducing words from other Indian languages, failed as a language but left its traces on the Assamese language. Moreover, new alien rules were also introduced changing people's food habits and other aspects of cultural life. This had a greater impact on the alienation of many ethnocultural and political groups in the later periods.