Cnidaria is a phylum within Kingdom Animalia which consists of hydras, jellies (or jellyfish), sea anemones, and corals. All cnidarians are radially symmetrical, and there are two main radially symmetrical body types.
The stock market crash, on black Tuesday (October 29, 1929) began the Great Depression.
1. Stock Market Crash of 1929. Many believe erroneously that the stock market crash that occurred on Black Tuesday, October 29, 1929 is one & the same with the Great Depression. In fact, it was only one of the major causes that led to the Great Depression, however it was the first.hile not a direct cause of the Great Depression, the drought that occurred in the Mississippi Valley in 1930 was of such proportions that many could not even pay their taxes or other debts & had to sell their farms for no profit to themselves.