June 3, 1888 by Michael Ceraolo

 June 3, 1888

The outlook turned out brilliant for a poem published on this day,

written under the pseudonym Phin in the city by the Bay

Declaimed famously by Hopper and many thousands more,

spawner of parodies and bad imitations by the score

It just may be the great poem Hoover later called for, at that:

Ernest Lawrence Thayer's Casey at the Bat