The Tri-University Graduate Program’s World History PhD field draws upon the expertise of a wide range of scholars and their research in our program. World history differs from other historical studies in addressing a wider range of topics, specifying previously neglected connections among arenas of human experience, tracing broad patterns in the past, and clarifying relationships among different scales of the world’s events and processes. World history studies aspects of historical change that transcend single nations or regions, including the environment, religion, ideology, labour, migration/diaspora, industrialization, colonialism and imperialism, social movements, slavery, racism, human rights, class, gender, science and technology, popular culture, trade and finance and demography.