21 h 12 m, 31 dic 1872 año - Panic of 1873:
American post-Civil War inflation, rampant
speculative investments (overwhelmingly in
railroads), the demonetization of silver in
Germany and the United States, property losses
in the Chicago (1871) and Boston (1872) fires,
and other factors put a massive strain on bank
reserves, which plummeted in New York City in
September and October 1873 from $50 million
to $17 million.