Complex sentence: What is now the Peddie School was founded as an American Baptist school, The Hightstown Female Seminary, in 1864, but later that year, boys were admitted, and it changed its name for the first time.
Split into simpler sentences: What is now the Peddie School was founded as an American Baptist school, The Hightstown Female Seminary, in 1864. Later that year, boys were admitted and it changed its name for the first time.