The Treatise on Saxon Myths That Bede Omitted to Write

I came across a few Borges poems at The Cedar Room, including this unspeakably gorgeous piece.

Things That Might Have Been
by Jorge Borges

I think about things that might have been and never were.
The treatise on Saxon myths that Bede omitted to write.
The inconceivable work that Dante may have glimpsed
As soon as he corrected the Comedy's last verse.
History without two afternoons: that of the hemlock, that of the Cross.
History without Helen's face.
Man without the eyes that have granted us the moon.
Over three Gettysburg days, the victory of the South.
The love we never shared.
The vast empire the Vikings declined to found.
The globe without the wheel, or without the rose.
John Donne's judgment of Shakespeare.
The Unicorn's other horn.
The fabled Irish bird which alights in two places at once.
The child I never had.