indicating locale code to url

[cagcak]

Is there a way to indicated language code at the start of the url like:
www.example.com/en

Currently I see the urls when indicated as:
www.example.com/some/path/to-actual/index.html?locale=en
I expect to push it for every page as:
www.example.com/en/some/path/to-actual/index.html

Thanks in advance.
#146