In order not to let the meal time slow down their marching speed , General Qi invented a kind of bread which was shaped into a ring at that time .
Qi 's soldiers could wear a string of those breads around their neck .
In order not to let the meal time slow down their marching speed , General Qi invented a kind of bread which was shaped into a ring at that time , so his soldiers could wear a string of those breads around their neck .