1. old kingdom
   1. isolation
      1. deserts + control of access
         1. control of nile = unity
            1. no war = need legitimacy
            2. + Nile Floods = no work
            3. pyramids = why?
            4. size = men, materials, time = power
            5. problem of local authority
            6. obekisks and nobility over time
2. 1st internmediate
   1. collapse of centralization
      1. nobility vs nobility
         1. Prince of Thebes
3. middle kingdom
   1. no pyramids
      1. people need money
         1. public works
         2. entertainment and stories
4. 2nd intermediate
   1. hykos
      1. chariots
         1. northern egypt
            1. trauma
         2. breakup in south
            1. reorganization Ahmose
            2. Imperialism
5. new kingdom
   1. imperialism
      1. chariot armies
         1. alliances along coast
            1. out in the world
            2. assyria
            3. persia