William Wordsworth (1770–1850), regarded alongside Samuel Taylor Coleridge as the founder of the English Romantic Movement following their publication of Lyrical Ballads (1798), composed this masterpiece under unique biographical circumstances in the late summer of 1802.
In 1802, the brief Peace of Amiens temporarily halted the Napoleonic Wars between Britain and France, opening French borders to English travelers. Wordsworth, who was preparing to marry his childhood friend Mary Hutchinson, needed to travel to Calais in France to meet his former French lover, Annette Vallon, and their nine-year-old daughter, Caroline, to reach an amicable financial and personal settlement.
Early on the morning of July 31, 1802 (though Wordsworth dated the published poem September 3, 1802, possibly referring to their return journey or poetic completion), William and his sister Dorothy Wordsworth boarded the Dover coach from Charing Cross. As the horse-drawn coach crossed Westminster Bridge at approximately five or six in the morning, the panoramic spectacle of London at sunrise arrested Wordsworth's soul.
"We mounted the Dover Coach at Charing Cross... The city, St. Paul's, with the river and a multitude of little boats, made a most beautiful sight as we crossed Westminster Bridge. The houses were not overhung by their cloud of smoke, and they were spread out endlessly, yet the sun shone so brightly that it was even something like the pure light of the morning on the hills."