You can use Primo to search for articles (as well as books), but library also has many specialized databases available to use for finding articles. One this page are a few suggestions. —>
Subject: Interdisciplinary Content/Description: Peer-reviewed journal and magazine articles, historical reviews, abstracts, and indexing from content as far back as 1867.
Subject:History Content/Description: Provides scholarly journal articles covering world history from 1450 to the present (excluding the United States and Canada, which are covered in America: History and Life).