Its October always rough..
The Friday the 13th mini-crash was a stock market crash that occurred on Friday, October 13, 1989. The crash - referred to by some as "Black Friday"
In finance, Black Monday refers to Monday, October 19,1987, when stock markets around the world crashed.
The Wall Street Crash of 1929, also known as theStock Market Crash of 1929 or the Great Crash, is the stock market crash that occurred in late October, 1929. It started on October 24 ("Black Thursday") and continued until October 29, 1929("Black Tuesday"), when share prices on the New York Stock Exchange collapsed.