Xenophon looked on Marathon

Dan Dawson's praise of Ireland's natural beauties elicits a classical comment from Simon Dedalus: "And Xenophon looked upon Marathon...and Marathon looked on the sea." He is quoting from a verse of Byron's, but inaccurately, and his reasons for alluding to the poem are not entirely clear. 

John Hunt 2023

Map drawn for the Department of History at the U.S. Military Academy.
Source: www.worldhistory.org.

Depiction of the battle by John Steeple Davis, in The Story of the Greatest Nations, from the Dawn of History to the Twentieth Century (1900).
Source: Wikimedia Commons.

Another depiction of the battle by Time Life Pictures.
Source: www.sbnation.com.