Final answer:
Benjamin Franklin had his final formal year of schooling when he was 12 years old and attended a top preparatory school in Princeton.
Step-by-step explanation:
Benjamin Franklin had his final formal year of schooling when he was 12 years old. His family sent him to live with an aunt in Princeton so he could attend a top preparatory school. He lived in the same house in Princeton until his death in 1957, except for a brief stay in Europe for graduate work.