Edwin Arlington Robinson
Villanelle of Change
Since Persia fell at Marathon,
  The yellow years have gathered fast:
Long centuries have come and gone.
And yet (they say) the place will don
  A phantom fury of the past,
Since Persia fell at Marathon;
And as of old, when Helicon
  Trembled and swayed with rapture vast
(Long centuries have come and gone),
This ancient plain, when night comes on,
  Shakes to a ghostly battle-blast,
Since Persia fell at Marathon.
But into soundless Acheron
  The glory of Greek shame was cast:
Long centuries have come and gone,
The suns of Hellas have all shone,
  The first has fallen to the last: —
Since Persia fell at Marathon,
Long centuries have come and gone.