Winter solstice (冬至) was on Dec 22 this year. Did you eat dumplings on this day? This tradition (传统) came from a famous doctor named Zhang Zhongjing. Zhang lived during the Eastern Han Dynasty (东汉). On a cold winter day, he saw people who had frostbite (冻伤) on their ears. To help them, Zhang made some dumplings with mutton. After eating the dumplings, people felt warmer. They soon got better from the frostbite. From then on, people started to eat dumplings on winter solstice.