Popcorn is an ancient puffed food, the origin can be traced back to the Song Dynasty. At that time, the poet Fan Chengda in his "Stone Lake Collection" has mentioned the Shangyuan Festival in Wuzhong around the custom of popping grain, and explains: "fried glutinous grain to divination, the name of the grain Bolu, the North people number glutinous rice flower." Why is the popcorn called "Marco Polo"? Popcorn want to imitate the sound of popping grain, because the local dialect of the sound of thunder is called "Marco Polo". The Qing Dynasty scholar Zhao Yi in his book "eaves exposure miscellany" recorded a "popping Marco Polo poem": "East into the Wu Gate 100,000 families, family popping grain divination year. In the pot rows down the golden corn, turned into white jade flowers. Red and pink beauties take up the happy event, white-headed old men ask about their careers. In the morning to decorate the sons, several pieces of plum blossoms inserted sideburns oblique." The poet's popcorn is not only beautifully written, but also overflowing with the interest of life. Popcorn is also invented in the Song Dynasty, Fan Chengda in the "Wu County Records - Customs" recorded: "on the Yuan, ...... popping glutinous grain in the kettle, the name of the Marco Polo, also known as rice flowers. Each person to explode, in order to divine a year of rest and blame." At the advent of the New Year Song people with popcorn to know the year's good and bad luck, the girls are used to divine their own life events. The Song people added food and drink to their culture to give it a richer connotation. Popcorn is crunchy and easy to digest, and can be used as a tasty daily snack. Wu custom in the first month of the first day of fried glutinous rice, in order to divine the year's fault, the flower more auspicious. Ming Yang Ji (楊基), a poem entitled "Divining the Flow", said, "Spring comes to 100,000 households in Wu, and every household pops grain for career." Note to self: "The Wu people, in the first half of the year, used grain to divine the year's fortune. The one who fries into flowers is lucky; the one who does not, the opposite is true." Ming Li Daan, "The Old Man's Compendium of the Quitting An - Poem of Bakpo Lou": "East into the Wu Gate, 100,000 families, every family Bakgu to divine the year." hundreds of years ago, "necklace" gluttony as early as the European immigrants moved into this piece of "New World" before the Indians living on this continent will be prevalent to eat popcorn. Columbus returned to Europe, had depicted to the people of the "New World" on the Indian children with popcorn strung into necklaces on the street to sell the vivid scene. It was also the Indians who taught the European settlers how to plant and roast corn. A historian also found in the cave in New Mexico, the United States, 5000 years ago, the ancient Indians eat popcorn, but due to the then "technology" limitations, in the taste is far less crunchy than contemporary popcorn only. Zhongyuan Festival July 15, commonly known as the "half of the seventh month", also known as the Zhongyuan Festival, is the old folk festival of ancestor worship. Folk cook "mint cake", "golden rice fruit", burn silver paper clothes, worship ancestors. Married women, in case of new death of parents, on the thirteenth day to prepare offerings, silver paper, back to the mother's home to sacrifice, commonly known as sending "first year paper", and then every year on the fourteenth day of the "send paper".