The origin of these bans is related to the military. Crown is a hat, and it is also used to mean leading. In ancient China, people with outstanding military exploits and bravery were named "champion generals", which means the crown of generals; second is second, and those who are second only to the champion are "runner-up" ;The third name is called "Jijun", which is named according to the season. Because there are three months in a season, the third month of each season is called "quarter", and the third place is called "third runner-up"; in competitions, the top three are usually chosen, and the last place is called "dianjun", because in ancient times, the army marched and served as a rear guard. His troops were called "Dianjun", hence the name "Dianjun".