During the Industrial Revolution, the US underwent a technological advancement and a remake of how the economy worked. One of these technological advancement was the assembly line, which helped speed up production, as well as create "specialized" jobs (jobs in which a worker specializes in a part of the creation, such as creation of the engine and only the engine for a car, for example, in case you are wondering - remove the parenthesis and content inside). These changes in how factories worked helped with the mass exodus of the population from the rural areas to cities for higher pays, which helped with the population boom, and the soon to be restructuring of how cities worked and the services they provided. Without the Industrial Revolution, the US would not be the economically (& later miliatry) giant that she is right now.
Very abbreviated answer: The Black Death was another name for the plague, this claws caused by rats and lead to death of a large sum of the population.
The innovation that enabled ordinary people to buy cars was <span>Henry Ford's assembly line, which made cars inexpensive because they were able to produce them more efficiently and faster.</span>
The main way in which Puritan beliefs affected government in New England during the 1600s was that they had an incredibly strong work ethic, meaning that the government championed hard work and was highly intolerant of laziness.