The main difference between being poor in America and Europe in the 19th century etc. was that America offered much more opportunities due to the fact that it was a nation that was being built up from the ground. This meant that poor people and people of low education could at least get various jobs in construction and related things whereas in Europe, the opportunities for such people were much smaller.
The answer is monopoly because held most of the banana production in Central America. This company is also describe as Exploitative neo-colonialism. It has a staying power and influence, it is also created monopolies governance and politics. It had long impact on the economic and political of many Latin American countries.
I believe the Martin Luther did because he gave the USA equal rights. Without him, there would still be segragation
