What is the albany plan of union about?

How does specialization enable countries to trade with one another? a country can make and sell goods affordably and buy goods that it is inefficient at making. a country can make what it chooses and sell its goods to other countries. a country can decide to buy everything it needs from other countries. a country can efficiently make goods that were once difficult to make.

Countries that are neither core nations nor peripheral nations

Why couldn’t other societies utilize horses the same way the mongols could?