Primary sources are important when studying historical events, because they generally give eye-witness accounts of what is going on, albeit with opinions. They give historians a view of what a certain group of people think, the actions they take, and how the events affect their everyday lives. Primary sources also allow others to build on top of it, and to give 'parts of the "whole"', such as the pieces of a puzzle, to giving those in the future a more narrow and personal outlook of things.
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What got people to move to the west were the great plains were, is because of the gold rush. The president showed a giant crowd of people a jar of water, sand, and gold nuggets. He told them this is what they would find if they moved to the west. And of course everyone went searching for gold.
2. He claimed New York Harbor and the Hudson River for the Dutch.
3. He sailed to North America four times.
The correct answer is - B: England was the only place to produce iron.
Though initially England was the only industrialized country in the world, and it managed to develop the iron industry before anyone else, that doesn't mean at all that the iron was not produced at other places.
The iron was produced since very long time ago prior to the industrial revolution by numerous people. It is very abundant metal in the nature, so most people had lot of reserves of it. The difference is that the other people were not able to mass produce it because everything was still done manually, while England managed to create the industry and the machines, so was able to mass produce it.
