ication was inconvenient, and messages often took days to deliver.If it's a round trip, it could take as long as half a month, even if the journey is a little far.Therefore, as long as they haven't en...imself to the officials reading it, and from high-ranking officials like kings and generals down to common peddlers and laborers, everyone knelt down.Wu Qingcang and Wu Banshan, the brothers, were tak...