Answer:
NAFTA, the largest free-trade agreement in the world, came into force during the Bill Clinton´s years (1993). It created a free-trade zone comprising Mexico, the United States and Canada. It has boosted trade, investment, prosperity and economic interconnection of the three parts. Although it has been modified by an initiative of the current Donald Trump´s administration, free trade exchanges will continue. The Clinton years were important for free trade around the world. The Senate approved the GATT treaty. Other countries and regions followed and reached free-trade agreements after NAFTA.
Explanation:
I'm guessing that they fought against forces, like the people trying to steal land so they could have enough space to live, farm, and hunt.
I also think that the Native American could have traded or given valuable items to the people who were trying to take their land in exchange for the Natives to keep their land.
The more crops there are, that means that there's gonna be more resources. Which will mean that more people will be able to live in a town, because if there are less resources and less crops then more people will starve and die out way before they can reproduce. If they cant keep reproducing and be able to feed their children, then the town will become smaller and smaller until its completely vanished.
Remarkable that the English-speaking world remembers Magna Carta. The product of a struggle between King John and his barons, it was sealed on the bank of the Thames 800 years ago, on June 15, 1215. But in a sense, the most valuable thing about Magna Carta is precisely that it is remembered. Other charters were issued across medieval Europe, but they were rapidly forgotten.