Complex sentence: Louis Zukofsky (23 January 1904--12 May 1978) was an American poet who was a founder and primary theorist of the Objectivist group of poets and thus an important influence on subsequent generations of poets in America and abroad.
Split into simpler sentences: Louis Zukofsky (23 January 1904--12 May 1978) was an American poet. He was one of the founders and the primary theorist of the Objectivist group of poets and thus an important influence on subsequent generations of poets in America and abroad.