Complex sentence: The article in which the term is coined, "Civil Religion in America", sparked one of the most controversial debates in United States sociology, which reached its peak with the American Bicentennial celebration in 1976.
Split into simpler sentences: The article in which the term is coined, "Civil Religion in America", sparked one of the most controversial debates in United States sociology. The debate reached it peak with the American Bicentennial celebration in 1976.