Possibly the telegraph. Morse code came into place with that. People could communicate with ticks.
The main way in which aristocracy differs from an oligarchy is that the former is a social class of people, while the latter refers to when a state is ruled by a small elite.
A farmer moves to an industrial area to work in a coal mine.
<u>Explanation:</u>
During the time of industrial revolution in England, the economy in that country moved from the primary to the secondary sector of the country. There were more people who were dependent on factories and industries for earning their livelihood as compared to be dependent on the agriculture for the same purpose. In this incident also, a farmer left his farm work and started to work in an industry and improved his standards of living.
