While many people in today’s China watch the state media CCTV’s gala show on the Lunar New Year Eve, about 1,000 years ago children took part in a special and playful routine to celebrate a festival called “selling ignorance”.Known in Chinese as mai meng dong or mai chi dai, the practice began during the North Song dynasty (960-1127), a period of advancing culture and economy.It involved groups of mischievous children running through streets after eating the New Year Eve dinner and shouting...