The battle occurred on October 21, 1805.

See, for instance, William Green’s A Description of a Series of Sixty Small Prints (1814), which opines that the “splendid display of wood” in this particular site
“is no where equalled in the north of England” (30). Green was an Ambleside-based
artist and friend of the Wordsworths.

The Pleiades cluster.

This poem was composed on 27 June 1817 and first published in the River Duddon volume of 1820.