1) Assistance and help.
2) Organized tools and resources.
3) In depth research resources which is not available anywhere else.
4) Easy access and quality information.
Hope it helps. ☺
I don't know your options, but there is one clear cause and effect relationship between the two:
As the agricultural methods advanced, people were more productive creating food. This means that not everyone had to engage in farming! And this allowed specialization for other jobs, just as smiths, which typically live in the cities.
