Respuesta :
Before the invention of railroads, city neighborhoods contained a mix of different people because everyone must live near their workplace.
This cause many people from many ethniciy to gather up within one single place and cause a huge mix of different people with variety of skills living in one place.
This cause many people from many ethniciy to gather up within one single place and cause a huge mix of different people with variety of skills living in one place.
Answer: Was within walking distance of where they worked
Explanation: Apex
