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.
On Tuesday October 29th, 1929, Wall Street witnessed a 13% decline in the Dow Jones, an episode that became known in financial mythology as âBlack Tuesday.â It is generally recognized that Black Tuesday was the beginning of the Great Depression.