It only appeared to be so. The roaring twenties was soon followed by the Great Depression, I believe, and lots of people suffered during that time.
Fighting in Vietnam started in 1954 when technically France tried to reassert its colonial claims to Indochina, although Japan had claims as well. It was primarily a colonial beginning.
Answer:
A, C, and D
Approximately 80 percent of the city was flooded.
Thousands were stranded and needed rescues.
The city faced a public health emergency.