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 Great Depression was a severe worldwide economic depression in the 1930s. The timing of the Great Depression varied across nations; however, in most countries it started in 1929 and lasted until the late 1930s.It was the longest, deepest, and most widespread depression of the 20th century.hey argue that the Great Depression was caused by the banking crisis that caused 1/3 of all banks to vanish, a reduction of bank shareholder wealth and more importantly monetary contraction by 35%. This caused a price drop by 33% (Deflation).