why some civilizations develop faster

• diamond needed to see when people were totally equal 
• hunter gatherers small mobile groups
• women gather
• important source is sago
• They don't wear shirts.
• Barley and wheat
• simple grasses have profound impact
• ice age conditions returned
• colder and dryer
• animal heards died off
• trees and plants did too
• lasted more than 1000 years
• earliest permanent village in the world
• oval huts partially cut in the ground
• 11500 years ago
• huge discovery 
• the way crops are changed is known as domestication
• precise process
• not different from what they were doing years ago
• establish links between farming people and civilization people he thinks he can be "Well on his way to the links"
• china was next
• then america
• africa farmed yams and more
• relatively large advanced civilization formed from that
• 50 years after westerners colonized  
• 10000 years
• almost as long as westerners