Complex sentence: Secchiaroli was born November 26,1925, in Centocelle, a suburb of Rome, Centocelle was at that time much farther away culturally from the big city than it's ten kilometer distance would indicate.
Split into simpler sentences: Secchiaroli was born November 26,1925, in the town of Centocelle. Now a suburb of Rome, Centocelle was at that time much farther away culturally from the big city than it's ten kilometer distance would indicate.