In your opinion who was the most influential inventor of the 19th century?

Englishman John Mercer because he invented a process to increase the tensile strength and affinity for dyes in cotton thread.

Explanation:

Nikola Tesla

Explanation:

The easy answer would be Thomas Edison, but what some people don't know is that he stole his inventions from other people. And if you were to do the research or maybe you had a decent teacher who taught you this, you would know that the sole victim of Thomas Edison's thievery was Nika Tesla. And unfortunately, Edison wasn't the only man to steal Tesla's ideas. Guglielmo Marconi(pronounced goon-yer-mo & translated as William) was also a part of the stealing Tesla's inventions club. The radio was big deal when Marconi came out with it.

for the 2 countries u can do china and america because america has a democratic government while china has a communist government.

a democracy is a government run by the people either by directly voting or indirectly by electing representatives. an oligarchy is a government run by a few or a small group of people. a democracy and oligarchy are similar because both in an oligarchy and an indirect democracy, a small group of induvial determine the laws for a large group of people they are different because in an oligarchy it is easier to control and they do not have to answer to a large number of people in the country, unlike a democracy where they do have to answer to a large number of people an county that is a democracy would be the united states. a country that is an oligarchy would be the china.

i'll write a docs for you. hold on for a moment