its not a lot of people everyone got somewhere to live
growth of the factory system
One-off production is when only one product is made at a time. Batch production is when a small quantity of identical products are made. Mass production is when hundreds of identical products are made, usually on a production line.
middle class is not to many poor and not too many rich
Harsh working conditions
people not working in their house anymore.
Generally speaking, working conditions cover a broad range of topics and issues, from working time (hours of work, rest periods, and work schedules) to remuneration, as well as the physical conditions and mental demands that exist in the workplace.