Complex sentence: In the late 1800 and early 1900 a Black school was known as the Collegiate Institute for Negro Youth spearheaded and promoted by the Reverend A. M. Barrett.
Split into simpler sentences: In the late 1800 and early 1900 a Black school was established was known as the Collegiate Institute for Negro Youth. The school was spearheaded and promoted by the Reverend A. M. Barrett.