Where did the headless horseman come from and why is he a big hit?

He is in a grimm brothers fairytale and is usually brought up as a fictionous story of a guy who got his head chopped off and still lived by ichavod crane

no statements but ok.

the statement that best describes the idea of manifest destiny that was used in the 19th century would be that "it was fate that the united states would continue to  expand westward," since people thought the us was "destined" to do so. 

i think the answer is the one about environmental and social health.

hope this