Complex sentence: The earliest waffle irons were not the work of Mr. Swartwout; instead, they originated in the Netherlands circa 14th century, and Swartwout family lineage goes back to the Dutch Low Countries.
Split into simpler sentences: The earliest waffle irons were not the work of Mr. Swartwout; instead, they originated in the Netherlands circa 14th century. The Swartwout family lineage goes back to the Dutch Low Countries.