Looking back at the postclassical era, what are some continuities regarding labor systems?

Indigenous peoples were introduced to horses and the wheel, while europeans learned of many previously unknown plants.

The  most important advantage  of  northeast china  that  mainly contributed toward its being  the  industrialand  technological center  of the  country  in the  1970s  and  1980s  is:   its  juxtaposition with china's  most important industrial  neighbors.

The indus experienced a devastating dropped

Mark antony repeats that line to discredit brutus by giving examples that prove that caesar was not ambitious.i hope this ! : )