Well, people started specializing in things and if they couldn't get something because they didn't know how to make it, they would trade for it. Fast forward 8000 years, companies like Coca Cola make coke and fanta and others can't make it because they're specialized for it. They trade for it with the entire world and other companies make things that Coca Cola owners buy.
Answer:
Yes after the world war 2 the USA WAS LOST HALF OF THE AREA BECAUSE THE WAR WAS HAPPENED IN USA ONLY THAT TIME THE RUSSIA WAS THROW SOME BOMBS IN USA THAT TIME IN THAT AREA SOME HOUSES AND PEOPLE WAS NOT DIED THEY ARE EXPECTING BUT IN THAT AREA THE PIECE OF MAN ALSO NOT THERE AND THE WAR PLEASE ALSO SOME COLLAPSED THAT TIME THE RUSSIA WAS DEVELOPING MORE IN THEIR COUNTRY AND THEY FIRST IN THE GROWTH
The plan sought to revolutionize credit and marketing arrangements for staple crops, particularly cotton. A prominent version of the Subtreasury Plan required the federal government to construct warehouses, or subtreasuries, in counties that marketed crops with an annual value of $500,000.
The answer is strong governments in towns and villages, and a relatively weak government.