22. East/ West Axis
Ultimate
many suitable ease of
factors wild animals migrations
Proximate
factors
23. East/ West Axis
Ultimate
many suitable ease of
factors wild animals migrations
many domesticated plant &
animals species
Proximate
factors
24. East/ West Axis
Ultimate
many suitable ease of
factors wild animals migrations
many domesticated plant &
animals species
food surplus & storage
Proximate
factors
25. East/ West Axis
Ultimate
many suitable ease of
factors wild animals migrations
many domesticated plant &
animals species
food surplus & storage
large, dense, sedentary,
stratified societies
Proximate
factors
26. East/ West Axis
Ultimate
many suitable ease of
factors wild animals migrations
many domesticated plant &
animals species
food surplus & storage
large, dense, sedentary,
stratified societies
Proximate advanced
technology
factors
27. East/ West Axis
Ultimate
many suitable ease of
factors wild animals migrations
many domesticated plant &
animals species
food surplus & storage
large, dense, sedentary,
stratified societies
Proximate advanced
technology
factors
Horses
28. East/ West Axis
Ultimate
many suitable ease of
factors wild animals migrations
many domesticated plant &
animals species
food surplus & storage
large, dense, sedentary,
stratified societies
Proximate advanced
technology
factors
Steel, guns,
Horses
sword
29. East/ West Axis
Ultimate
many suitable ease of
factors wild animals migrations
many domesticated plant &
animals species
food surplus & storage
large, dense, sedentary,
stratified societies
Proximate advanced
technology
factors
Steel, guns, Ocean-going
Horses
sword ships
30. East/ West Axis
Ultimate
many suitable ease of
factors wild animals migrations
many domesticated plant &
animals species
food surplus & storage
large, dense, sedentary,
stratified societies
Proximate advanced
technology
factors
Steel, guns, Ocean-going political organization
Horses
sword ships & writing
31. East/ West Axis
Ultimate
many suitable ease of
factors wild animals migrations
many domesticated plant &
animals species
food surplus & storage
large, dense, sedentary,
stratified societies
Proximate advanced
technology
factors
Steel, guns, Ocean-going political organization Epidemic
Horses
sword ships & writing disease