s - social
development & transformation of social structures
p - political
state building, expansion & conflict
i - interactive
interaction between humans & the environment
c - cultural
development & interaction of cultures
e - economic
creation, expansion, and interaction of economic systems
t - technology
adaptation and innovation resulting in increased efficiency, comfort, and security
gender roles & relations
social
family & kinship
social
racial & ethnic constructions
social
social and economic classes
social
political structures & forms of governance
political
nations & nationalism
political
wars
political
revolts & revolutions
political
regional, trans-regional, and global structures/organizations
political
demography & disease
interactive
migration
interactive
patterns of settlement
interactive
religions
cultural
belief systems
cultural
philosophies & ideologies
cultural
arts & architecture
cultural
agricultural & pastoral production
economic
trade & commerce
economic
labor systems
economic
industrialization
economic
capitalism & socialism
economic
inventions
technology
transportation
technology
communication
technology
agricultural
technology
industria
technology
science
technology
medicine
technology