Deflation
Deflation occurred periodically in the U.S. during the 19th century (the most important exception was during the Civil War). This deflation was at times caused by technological progress that created significant economic growth, but at other times it was triggered by financial crises — notably the Panic of 1837 which caused deflation through 1844, and the Panic of 1873 which triggered the Long Depression that lasted until 1879. These deflationary periods preceded the establishment of the U.S. Federal Reserve System and its active management of monetary matters. Episodes of deflation have been rare and brief since the Federal Reserve was created (a notable exception being the Great Depression) while U.S. economic progress has been unprecedented.
Labor history of the United States
The stock market crashed in October 1929, and ushered in the Great Depression. By the winter of 1932–33, the economy was so perilous that the unemployment rate hit the 25 percent mark. Unions lost members during this time because laborers could not afford to pay their dues and furthermore, numerous strikes against wage cuts left the unions impoverished: "one might have expected a reincarnation of organizations seeking to overthrow the capitalistic system that was now performing so poorly. Some workers did indeed turn to such radical movements as the Communist Party, but, in general, the nation seemed to have been shocked into inaction".