Exports are goods and services that are produced in one country and sold to buyers in another. Exports, along with imports, make up international trade.
The most difficult challenges faced by the plymouth and jamestown settlers were not starving to death, since they were unfamiliar with the territory and farming practices needed for the land, and dealing with hostile Native Americans, since many natives viewed them (correctly) as being a threat.
The Articles of Confederation were essentially an early version of the US Constitution that were created as a governing agreement among the 13 original colonies/states to fight the Revolution and establish some limited federal power.
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They viewed reaching an advanced age as a significant accomplishment.
Life expectancy in early colonial Virginia was less than 25 years -- including the reality of infant mortality and a high number of deaths in childhood. In the colonial beginnings of New England, around 40% of children died before reaching adult age. Life in the colonies was very hard for the early colonists.