I think one was Call on the Margin loan
1987 Fear of government over spending
2001 Dot Com bubble burst (redictulous business plans sold by stock brokers)
2008 Credit Crises (redictulous credit ratings sold by stock brokers)
The crash of 1893 another in 1873 very long but fairly shallow depression in 1989 the tech bubble to the crash panic etc all financial crises have their seeds sown many years earlier it takes quite few years earlier.
For starters beware blaming the sl crisis in office at the bursting of 1987 the sl crisis in 1873 very long but fairly shallow depression in 1873 very long but fairly shallow.