Complex sentence: In the 20th century, American-British poet T.S. Eliot (1888--1965) was inspired by the legacy of Little Gidding and incorporated historical elements and symbols into his long poem, "Little Gidding" from his collection "Four Quartets" (1945).
Split into simpler sentences: In the 20th century, American-British poet T.S. Eliot (1888--1965) was inspired by the legacy of Little Gidding. He incorporated historical elements and symbols of it into his long poem, "Little Gidding," as part of his collection "Four Quartets" (1945).