He upgraded Corinth's port, and built a ramp across the Isthmus of Corinth so that ships could be dragged across (the Diolkos), avoiding the sea route around the Peloponnese. The money gained from the diolkos allowed Periander to abolish taxes in Corinth. However, Periander was later considered the typical evil tyrant (for example, by Aristotle). Periander's nephew Psammetichus succeeded him as tyrant of Corinth but Psammetichus' rule only lasted three years and he was the last of the Cypselid dynasty. Periander was listed by most authors as one of the Seven Sages of Greece. According to Herodotus, Periander also held the musical contest that was won by the poet Arion. Periander invented the railway, albeit horse-drawn, aforementioned as the "Diolkos".