The invasion of Manchuria happened in 1932 which is 7 years before the official year of the start of World War 2 and 9 years before the US intervention in World War 2 (Pearl Harbor).
Answer: There are many reasons for that:
- There was party stability, and the dominance of both Democrat and Republican parties was strong, which led to a big impact in the lives of millions of voters.
- The appearance of political machines, which were party organizations that incentivized people to join their party and increased their voter´s loyalty.
- Political machines became a central element of life for civilians.
- Political parties not only served the political needs of society, but also their needs for social services.
The White House was essentially destroyed during the war of 1812, so it was restored and later expanded.
An economic downturn.
http://factsanddetails.com/russia/History/sub9_1f/entry-4990.html
The Soviet Union turned a rural, agrarian society into one of the largest economic powerhouses in the world. The breakup greatly effected it.
