Qingming Festival, also known as Outing Festival, Xingqing Festival, March Festival, Ancestor Worship Festival, etc., falls between mid-spring and late-spring.The Qingming Festival originated from the ancestral beliefs and spring ritual customs in ancient times. It has both natural and humanistic connotations. It is not only a natural solar term, but also a traditional festival.In order to express the deep condolences of the people of all ethnic groups in the country to the sacrifice of martyrs and deceased compatriots in the fight against the new crown pneumonia epidemic, the State Council issued an announcement today, deciding to hold a national mourning event on April 4, 2020.During this period, national and foreign embassies and consulates flew flags at half-mast, and public entertainment activities were suspended nationwide.From 10:00 on April 4, people across the country observed a 3-minute silence. Cars, trains and ships honked their horns and air defense sirens sounded.