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.
The Stock Market Crash of 1929 (October 24-29, 1929) signaled the beginning of the Great Depression. Black Thursday was followed by more losses on the following Monday and Tâ¦uesday. There were several major causes of the Great Depression in the United States. Unequal distribution of wealth.