Answer:
Many things
Explanation:
There were crop failures due to lack of rain, cold winters, low rainfall, droughts and dust storms.
So it's been years since I've studied this, but I do know one thing important is the introduction of coin Currency and establishment of banks
Visual-spatial, linguistic-verbal, interpersonal, intrapersonal, logical/mathematical, spatial, naturalistic, musical,
There are many answers:
Could be:
reciprocity - just what Confucius said.
love
hardworking
generosity
kindness
loyalty
honesty
especially HOPE and FRIENDSHIP