Compare the emergence of advanced civilizations in meso and south america with the four early river valley civilizations.
the native americans were known for learning new things about medicine, making them similar to which people of an early river valley civilization?
dravidians
egyptians
harappans
mesopotamia

battle of saint-mihiel, (12–16 september 1918), allied victory and the first u.s.-led offensive in world war i. the allied attack against the saint-mihiel salient provided the americans with an opportunity to use their forces on the western front en masse.

explanation:

answer; i believe the two groups were irish immigrants and chinese immigrants;