Answer:
(B) steam locomotive
Explanation:
In 1830, Peter Cooper, a well known and established inventor managed to invent and construct the first steam locomotive. He even bought a land as to have space where the test it and run it to be assured that it came out as planned. Once he introduced his invention on the market, everyone was fascinated and immediately saw the enormous potential this invention had. Not all of the country was connected through major waterways, so lot of parts were cut out. The steam locomotive though was moving on the railroads, thus on land, and it was able to reach every part of the country if the infrastructure was set up. This invention resulted in large scale migrations toward the west, easier trade and transportation of raw materials and goods, rapidly leading to economic boom.
Most, not all. Some whites lived in poverty too, so they couldn't afford slaves.
The first meeting of Montezuma and Cortes was quite cordial. The Aztec ruler regarded Cortes with keen interest. He even received the gifts from the Mexican well. Cortes boldly put a necklace on the neck of the prince and even wanted to hug him if he did not thought it was going to be too much.
Just choose anybody historical. But make sure your interested in what they did so it will be easier
