Advantages:
-you can save money
- less pollution
The roaring twenties were called this because this was after the US won WWII so everyone was celebrating. The US started prohibition, but people kept on drinking and partying. It got so bad and crazy that this was one for the main reasons for the Great Depression
1899, the United States declared the Open Door Policy. The Americans worried that other nations would soon divide China into formal colonies and shut out the American traders. They proposed that China's doors be open to merchants of all nations.
