Complex sentence: This influence led E.M.East to create many of his ideas concerning birth control and immigration policy.E.M.East applied many of the ideas that he had developed in his research on the applications of genetics to agriculture to his ideas about human society.
Split into simpler sentences: This influence led East to create many of his ideas concerning birth control and immigration policy. He applied many of the ideas that he had developed in his research on the applications of genetics to agriculture to his ideas about human society.