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.
Paper - Paper was invented by the Chinese as well as many interesting uses for paper like paper money and playing cards. The first paper was invented in the 2nd century BC and the manufacture later perfected around 105 AD. Printing - Wood block printing was invented in AD 868 and then moveable type around 200 years later. This was actually hundreds of years before the invention of the printing press by Gutenberg in Europe.