Those who participated in the chinese tribute system gained . .

Those who participated in the Chinese tribute system gained an opportunity to trade with China. Under the Chinese tribute system, the Chinese government gave other states gifts that exceeded their tributes to China. The tribute system was in many ways a mark of how the Chinese perceived themselves  in relation to the outside world

well this is going to be a long answer lol ok so the visigoths were a branch of the goths who frequently raided rome, uh the hunas attacked the guptas a lot and weakened them, uuhm of course the romans used math and science in there every day lives i mean they had a whole empire to run, and rome was split into east and west by a general named diocletian. hope this you! : )

by improved communication.