In 1854, the post office was removed from Sidney through political manipulations. Schuyler Colfax, the congressman in the district was asked to name the post office. He had a great interest in Greek history which led him to name the post office Argos, after the ancient Greek city made famous in the Iliad of Homer. Argos was the name that was kept when Sidney and Fremont were consolidated in 1859. The town of Argos was incorporated in the state law in December 1869.