Complex sentence: The Centro was founded in 1967 by the Archdiocese of Washington, and it was originally headed by the Spanish missionaries, Fr. Rutílio and Sister Ana María; it is an organization which provided educational, medical and legal help to immigrants.
Split into simpler sentences: The Centro was founded in 1967 by the Archdiocese of Washington, and it was originally headed by Spanish missionaries Fr. Rutílio and Sister Ana María. It is an organization which provided educational, medical and legal help to immigrants.