Capitalism developed over hundreds of years and is inextricable from European colonialism. The shift to capitalist relations themselves being ubiquitous is just a couple hundred years old, but the conquest by the bourgeoisie goes back more like 500-700 years.
A web server is just any software that can be accessed with web network protocols. This can look like a lot of things. If you have Python installed you can start a web server right now by running
python -m http.server
. localhost:8000 in a browset would then let you browse files via the (local) web.What kind of server do you want to run?