How long is an elephant pregnant? While a female elephant is in labor, the other elephants in the herd protect her by forming a circle around her. Most elephants only bear one baby at a time, but twins occur in approximately two percent of elephant births.
# The purchase of The US Mint in Philadelphia, was the first money appropriated by Congress for a building to be used for a public purpose. It was purchased for a total of $4,266.67 on July 18, 1792. 1862-1879 â FLOATING fiat currency 7 years. The first use of fiat money (called Greenbacks) in the United States was in 1862, it was used as a tool to pay for the enormous cost of the Civil War. Greenbacks were a debt of the U.S. government, redeemable in gold at a future unspecified date.
The basic face and back designs of all denominations of our paper currency in circulation today were selected in 1928, although they were modified to improve security against counterfeiting starting in 1996. A committee appointed to study such matters made those choices.