Final answer:
Robert Frost was the first poet to be invited to participate in a presidential inauguration, reciting his poem "The Gift Outright" at John F. Kennedy's inauguration in 1961. Frost's poetry reflected the changing cultural landscape of his time, merging traditional forms with the American vernacular.
Step-by-step explanation:
In 1961, Robert Frost was invited to recite his poem "The Gift Outright" at the inauguration of President John F. Kennedy, making him the first poet to participate in a presidential inauguration. Frost's poetry reflected the changing cultural landscape of his time, merging traditional forms with the American vernacular to create poetry that was distinctly American and contemporary. Rhyme is an important element in both formal and free verse poetry, occurring as end rhyme in formal poetry and often as internal rhyme in free verse.