Contending Voices: Problems in World History

The United States is set to rejoin UNESCO. As a member state, the U.S. will pay annual dues and participate in global discussions ranging from global cultural heritage to regulations on the use of artificial intelligence.

V-Dem's 2023 Democracy Report shows that the overall level of democracy has, in recent years, fallen back to levels not seen since 1986. This essay helps readers explore the report to evaluate the details of democracy and autocracy in any nation

This essay, the conclusion of a three-part series, explores the seventh phase of human evolution: the expanding scale of social organization.

This post—the second in a three-part series—builds on the main categories and dynamics of human evolutionary change established in part one. I outline six phases of human evolution, exploring different models and hypotheses of growth and change.

When and how did Homo sapiens become a species? What are the roles of subgroups and migration in human evolution? The first in a three-part series, this post reviews six main categories of human evolutionary change and considers how each of them might lead to unification and/or differentiation of the human species.

Two recent books—when reviewed together—tell a century-long story of world history education on a global scale, accounting for almost half of the world’s high school students.

Oceans are no longer as blank and watery separators of continents; they are dynamic containers of historical change. New studies and recently published works show both slow and rapid change in oceans—and how much of our past has been enacted on the waters.

The extraction of minerals from the Earth today—the most dangerous change in our environmental crisis—is also essential to life as we know it. In a 2017 interview, ecological historian Gregory Cushman explains his work on humanity’s relationship with the lithosphere and provides valuable insights into this issue.