World history or global history (not to be confused with diplomatic, transnational or international history) is a field of historical study that emerged as a distinct academic field in the 1980s. It examines history from a global perspective. It is not to be confused with comparative history, which, like world history, deals with the history of multiple cultures and nations, but does not do so on a global scale.
World history looks for common patterns that emerge across all cultures. World historians use a thematic approach, with two major focal points: integration (how processes of world history have drawn people of the world together) and difference (how patterns of world history reveal the diversity of the human experiences).
Cultural studies is a field of theoretically, politically, and empirically engaged cultural analysis that concentrates upon the political dynamics of contemporary culture, its historical foundations, defining traits, conflicts, and contingencies. Cultural studies researchers generally investigate how cultural practices relate to wider systems of power associated with or operating through social phenomena, such as ideology, class structures, national formations, ethnicity, sexual orientation, gender, and generation.