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.
Stock Market During The Great Depression. October 29, 1929 is often marked as the start of the Great Depression in Americ a, a dark day when the U.S. stock market crashed.