(a) “Municipality” means any county within the State of Mississippi which borders upon the Mississippi Gulf Coast and any city, town, supervisor’s district, or other political entity created by the state located in whole or in part in any county bordering upon the Mississippi Gulf Coast or any combination of any of the above; any class one county having an area in excess of seven hundred twenty (720) but less than seven hundred twenty-five (725) square miles and having a total assessed valuation in excess of Eighty Million Dollars ($80,000,000.00), but not more than One Hundred Million Dollars ($100,000,000.00) according to the 1963 tabulation by the state tax commission and having a population according to the 1960 federal census in excess of sixty-five thousand (65,000) but less than seventy-five thousand (75,000), and any city, town, supervisor’s district, or other political entity created by the state located in whole or in part therein; and any county wherein there are located two county sites in one supervisor district, said county sites being in different judicial districts, and any city, town, supervisor’s district, or other political entity created by the state located in whole or in part therein.

(b) “Convention center” shall include but not be limited to the following described facilities or land and the improvements thereon having the common objective of promoting conventions, tourism and trade within the State of Mississippi such as a coliseum, auditorium, pavilion, galleries, hotels, motels, restaurants, clubs and other facilities of similar nature and character.