The first stanza of Walt Whitman's extraordinary poem, with its inspired bathos and confident ‘poetics of ad-libbing’ (Donald Davie's phrase: 59), proclaims its aim to fuse, on both personal and public planes, a sense of the trajectory linking past with present, and today's technology with tomorrow's new possibilities. It also announces the public occasions for this rhapsodic outburst (which actually gets more uncertain the longer it lasts): namely the successful laying of a transatlantic submarine cable allowing telegraphic communication across the Atlantic (July 1865); the junction of the Union and Pacific railroads (May 1869), and the completion of the Suez canal project allowing ships to travel to the East from Europe and the New World without circumnavigating Africa (November 1869).