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.
Long Depression
The dramatic shift in prices mauled nominal wages - in the United States, nominal wages declined by one-quarter during the 1870s, and as much as one-half in some places, such as Pennsylvania. Although real wages had enjoyed robust growth in the aftermath of the American Civil War, increasing by nearly a quarter between 1865 and 1873, they stagnated until the 1880s, posting no real growth, before resuming their robust rate of expansion in the later 1880s. The collapse of cotton prices devastated the already war-ravaged economy of the southern United States. Although farm prices fell dramatically, American agriculture continued to expand production.