interaction between humans and the environment
demography and disease, migration, patterns of settlement, technology
development and interaction of cultures
religions, belief systems philosophies and ideologies, science and technology, the arts and architecture
state building, expansion, and conflict
political sstructures and forms of governance, empires, nations and nationalism, revolts and revolutions, regional transregional and global structures and organizations
creation, expansion, and interaction of economic systems
agricultural and pastoral production, trade and commerce, labor systems, industrialization, capitalism and socialism
development and transformation of social structures
gender roles and relations, family and kinship, racial and ethnic constructions, social and economic classes
