Some of the oldest corncobs ever found suggest that the inhabitants of northern Peru were making popcorn and corn flour at least 3,000 years ago.
Üks vanimaid maisitõlviku leide (kõrval pildil) annab põhjust arvata, et Põhja - Peruu elanikud valmistasid popkorni ja maisijahu juba vähemalt 3000 aastat tagasi.