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Melancholy or sadness.
We've been in 5.
The Depression of 1807
The Panic of 1819
The Panic of 1857
The Great Drepression
The Greater Drepression (The one we're in now)
When many people were having fun
1/6 people were poor/unemployed during the great drepression.
I'm Canadian so I don't exactly know but I am pretty sure that JFK, Hoover, Roosevelt and Eisenhower all were in office during the depression and WW2.