Complex sentence: Octavius Valentine Catto (22 February 1839--10 October, 1871) was an African American educator, intellectual, civil rights activist, and cricket and baseball player in 19th-century Philadelphia.
Split into simpler sentences: Octavius Valentine Catto (22 February 1839--10 October, 1871) was an African American educator, intellectual, civil rights activist. He was also known for being a cricket and baseball player in 19th-century Philadelphia.