Foundations+-+North+America+-+Theme+1

Theme #1 - Interaction between humans and the environment
 * Demography and Disease
 * Migration
 * Patterns of Settlement
 * Technology
 * canoes
 * sailing rafts
 * obsidian tools
 * calendar
 * astronomy
 * irrigation systems
 * gold metallurgy
 * silver metallurgy
 * copper metalurgy
 * fishing nets