Complex sentence: Bogdan Petriceicu-Haşdeu (February 16,1836-September 7,1907) was a Romanian writer and philologist, who pioneered many branches of Romanian philology and history.
Split into simpler sentences: Bogdan Petriceicu-Haşdeu (February 16,1836-September 7,1907) was a Romanian writer and philologist. He may be considered as the pioneer in many branches of Romanian philology and history.