Question

how did commercial centres turn into big towns​

Answer 1

Answer:

A town centre is the commercial or geographical centre or core area of a town. Town centres are traditionally associated with shopping or retail. They are also the centre of communications with major public transport hubs such as train or bus stations. Public buildings including town halls, museums and libraries are often found in town centres.

Town centres are symbolic to settlements as a whole and often contain the best examples of architecture, main landmark buildings, statues and public spaces associated with a place.