Which four of these developments were made under mongol rule during the pax mongolica? •the extension of the grand canal in china
•the spread of Christianity
•the trade was encouraged with foreign states because they offered hospitality to foreign traders at Chinese ports.
•the invention of new medicines
•the establishment of a postal system
•there was development of a commerce in the region along the Silk Road.

abraham lincoln, according to anyone who was connected with agriculture, represented the worst of northern politicians. shortly after lincoln was elected, south carolina seceded from the union. they along with other southern states, retained their anger. in a way, it was their own fault: the democrats were split in the south. some wanted slavery to be extended in other states that were about to join the union and some didn't want it badly enough. lincoln had a solid backing from his party: the republicans were united in not wanting slavery to be expanded.

the map that was shown mostly had eastern asia highlighted. the answer would mostly likely be "the spread of communism into eastern asia set the stage for the korean war."

hopefully this .