Counterfeit currency has been in circulation for nearly as long as currency itself. Long before bills were used a form of money, counterfeiters would alter others forms of currency to gain more value than the traded item was worth. One of the first instances of this was during the foundation of the American colonies, when Native Americans would trade shells known as wampum as a form of currency.

The Treasury Secretary, Jack Lew, announced a redesign of some US bills. The bills to be redesigned include the $5 bill, the $10 bill and the $20 bill. This new generation of currency features women and non politicians on the bills, which has not been the norm in the past. Here are the various changes that have been made to the bills.

A Superdollar, also referred to as the Supernote or Superbill, is an extremely high-quality counterfeit US $100 note. The United States Government alleged the superbill was printed by unknown entities, namely independent organizations or forgiven governments. The “Supernote” is almost indiscernible from genuine US $100 bills.

Most offices and even many private homes today contain a paper shredder, capable of completely destroying paper documents, disks and plastic cards to protect our privacy and confidential information. But who first came up with the idea of shredding documents? Do you ever wonder how the shredders we use today came to be?

Every time you visit a store or restaurant, you interact with someone using a cash register. You may not even pay any attention to the machine. But how did we get to this point? When did salespeople first start using a cash register, and what did it look like?