It's been said that popcorn was part of the first Thanksgiving feast, in Plymouth Colony in 1621. According to myth, Squanto himself taught the Pilgrims to raise and harvest corn, and pop the kernels for a delicious snack
Popcorn is a variety of corn kernel which expands and puffs up when heated; the same names also refer to the foodstuff produced by the expansion. A popcorn kernel's strong hull contains the seed's hard, starchy shell endosperm with 14–20% moisture, which turns to steam as the kernel is heated