B: not rally. 200 years ago, it was just a small insignificant village.
A; how did it grow into such a large place?
B: large deposits of coal were found nearly and so many industries located themselves here. The village quickly grew into a key industrial centre.
A: as the city grew, it must have absorbed many village nearby.
B; yes, it did. The names of those village survive as the names of parts of the city.
A; I see. Are there any building more than 200 years old in your city?
B; oh, yes. Several of the buildings from the villages still survive. Many of them were inns for travelers and today survive as pubs. There was a castle near one village, so our city has a castle too.
A; really? So your city does have some old history after all.