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
Wells notes that many of the government inquires on the "depression of prices" (deflation) found various reasons such as the scarcity of gold and silver. Wells showed that the US money supply actually grew over the period of the deflation. Wells noted that deflation lowered the cost of only goods that benefited from improved methods of manufacturing and transportation. Goods produced by craftsmen and many services did not decrease in value, and the cost of labor actually increased. Also, deflation did not occur in countries that did not have modern manufacturing, transportation, and communications.