Complex sentence: Egbaland was not only where Henry Townsend lived but also boast of the first newspaper in Nigeria ("Iwe Irohin") as well as the first of the many Nigerian nations (until recently, the only) with an anthem.
Split into simpler sentences: Egbaland was not only where Henry Townsend lived but also boasted of being the home of the first newspaper in Nigeria ("Iwe Irohin"). Its people serve as the first of the many Nigerian nations (until recently, the only of them) to have had an anthem.