Complex sentence: The Symmes Purchase, also known as the Miami Purchase, was an area of land totaling roughly in what is now Hamilton, Butler, and Warren counties of southwestern Ohio, purchased by Judge John Cleves Symmes of New Jersey from the Continental Congress.
Split into simpler sentences: The Symmes Purchase, also known as the Miami Purchase, was an area of land in Southwestern Ohio in what is now Hamilton, Butler, and Warren Counties. It was purchased by Judge John Cleves Symmes of New Jersey from the Continental Congress.