Complex sentence: Lincoln High School, Home of the Tigers or Lincoln Academy opened in 1869 during Reconstruction as the all-black school in Leon County, Florida, serving grades 1 through 12, with its rival school Griffin High (mascot Hornets) what is now Griffin Middle.
Split into simpler sentences: Lincoln High School opened in 1869 during Reconstruction as the all-black school in Leon County, Florida. Its rival school was Griffin High (mascot Hornets) what is now Griffin Middle.