Complex sentence: The Fellowship of the New Life was dissolved in 1899, Pease, 1916 but the Fabian Society grew to become the pre-eminent academic society in the United Kingdom in the Edwardian era, typified by the members of its vanguard Coefficients club.
Split into simpler sentences: The Fellowship of the New Life was dissolved in 1899, Pease, 1916 but the Fabian Society grew to become the pre-eminent academic society in the United Kingdom in the Edwardian era. It was typified by the members of its vanguard Coefficients club.