thanksgiving , 1621 , Indians , thousands , headdresses , religious , popcorm , 1930s , go , theatres Popcorn is a delicacy that was developed by the...........of North America, dated back ............... of years. Besides eating popped corn, the Indians also used popped corn in........... , necklaces and in .................... ceremonies. According to most sources, a deerskin bag full of .............. was served at the first .................. dinner at Plymouth Rock in . Popcorn's popularity grew during the Depression of the ............ when people realised that a little popcorn could ............go . But its success was clinched when movie ......... across the continent started serving the snack. By 1947, of movie houses were selling popcorn at their concession stands.