The tradition of eating Kentucky Fried Chicken (KFC) for Christmas in Japan began in the 1970s, when the fast food chain started promoting their holiday dinner packages. At the time, it was a novel idea for many Japanese people, who were not used to eating chicken as a holiday meal. The popularity of KFC's Christmas packages grew over the years, and eventually it became a popular tradition in Japan. Today, KFC's holiday packages are a big part of Christmas in Japan, and many families and friends gather to enjoy a meal together.