Gaffield, Chad2017-07-112017-07-112001http://id.erudit.org/iderudit/031139arhttp://hdl.handle.net/10393/36255https://doi.org/10.20381/ruor-20535enPresidential Address: Historical Thinking, C.P. Snow’s Two Cultures, and a Hope for the Twenty-First CenturyArticle10.7202/031139ar