After nearly a decade in France, Franklin returns to Philadelphia, where he is greeted as a hero and celebrated for his diplomatic achievements.

Franklin serves as a delegate to the Constitutional Convention, playing a key role in shaping the U.S. Constitution. He uses his influence to promote compromise and consensus among the delegates. At 81, he is the oldest delegate present.

Franklin becomes the president of the Pennsylvania Society for Promoting the Abolition of Slavery, advocating for the gradual abolition of slavery and improved conditions for enslaved people.

Franklin begins writing his autobiography, although he only completes a portion of it before his death. The autobiography provides valuable insights into his life, philosophy, and the values that shaped his success.

Benjamin Franklin dies in Philadelphia at the age of 84. He is mourned as a national hero and a symbol of American ingenuity and civic virtue.