Final answer:
The publication of 'Lyrical Ballads' in 1798 established Samuel Taylor Coleridge's reputation as the father of English Romantic poetry.
Step-by-step explanation:
The publication of “Lyrical Ballads” in 1798 established Samuel Taylor Coleridge's reputation as the father of a new tradition of English Romantic poetry. This work, co-written with William Wordsworth, stood as a cornerstone of the Romantic movement, emphasizing individual expression, the beauty of nature, and a break from the formal constraints of previous literary traditions. This literary partnership between Coleridge and Wordsworth was central to the development and definition of the Romantic Era in English literature.