Which form of mass media has its american roots in the colonial days and was, in the beginning, concerned mostly with the literature and social graces

Magazines

Explanation:

Although newspapers can be dated back to the colonial era as well, the magazines have its origins concerning mostly literature and social matters, as asked for in the question. At first, it was all about the writings and societal status.

- encouraging nationalism

- returning to conservative political policies

they usually pass federal laws

and sometimes in the elections of the president