Answer:
1. Australia, Korea, Japan
2. Canada, USA, Mexico
3. Russia, China
4. Argentina, Chile, Brazil
5. south; east
6. north; west
The law changes because people were disagree about it and there's big difference from now
The war left behind destruction and bitterness in those nations.
Hammurabi's Code set laws in the Babylonian empire that applied to everyone. Including Hammurabi himself. This was important because it had never been done before, at least not at such a bit level. Hammurabi's Code inspired many countries to do the same, which led to monarchs being less powerful and was another step in the direction of democracy.
Hope this helps! Please let me know if I'm wrong :)