- from Middle Ages
Towns and cities were centers of trade.
The busy streets were lined with shops. Above them, craftspeople often had workshops. Sometimes, craftspeople of the same type would all be on the same street. So, tailors might be on one street, while shoemakers were on another. But even the largest cities held no more than 100,000 people. Compare that to present-day New York City, with a population of more than 8 million!