As used in this chapter, unless the context otherwise requires:
(1) “Exhibition grounds and buildings” means the exhibition grounds and buildings, in its entirety or any integral part thereof, including all improvements erected on the land used or useful for the purposes of exhibiting livestock;
(2) “Municipality” means any city of the first or second class or incorporated town in the State of Arkansas;
(3) “Legislative body” means the mayor and council of any city or town.