* Inter-Homo Displacements
    * 70Kya H. erectus vs H. sapiens: better brain, language, tools
    * 50Kya Neanderthal vs. H. sapiens: clothing, trade networks
  * Prehistoric Displacements
    * 3000BCE Yamnaya into Europe: wheel, horse, pastoralism
    * 3000BCE Austronesian into Oceania: sail + outrigger, agriculture
    * 2000BCE Indo-Aryan into India: chariots, iron
    * 1000BCE Bantu into Sub-Saharan Africa: agriculture, iron
    * 1000BCE Yayoi into Japan: agriculture
  * Historic Multi-millenial Displacements
    * 1492 Taino vs Spain
    * 1519 Aztecs vs. Spain
    * 1532 Incas vs. Spain
    * 1652 Khoe/San et al vs. Dutch
    * 1722 Easter Islanders vs. Dutch
    * 1769 Maori vs. Britain
    * 1778 Aboriginal Australia vs. Britain
    * 1804 Aboriginal Tasmania vs. Britain
  * Historic Sub-millenial Disruptions
    * 1840 Qing China vs. Britain
    * 1853 Tokugawa Japan vs U.S.
    * 1945 Imperial Japan vs U.S.
    * 1990 Iraq vs U.S.
  * Counterfactual
    * nuclear powers not coercing weaker powers
    * uncontacted tribes: Sentinelese, cargo cults