Money was historically an emergent market phenomenon that possessed intrinsic value as a commodity; nearly all contemporary money systems are based on unbacked fiat money without use value. Its value is consequently derived by social convention, having been declared by a government or regulatory entity to be legal tender; that is, it must be accepted as a form of payment within the boundaries of the country, for "all debts, public and private", in the case of the United States dollar.
Money burning or burning money is the purposeful act of destroying money. In the prototypical example, banknotes are destroyed by setting them on fire. Burning money decreases the wealth of the owner without directly enriching any particular party. It also reduces the money supply and (very slightly) slows down the inflation rate.
Money is usually burned to communicate a message, either for artistic effect, as a form of protest, or as a signal. In some games, a player can sometimes benefit from the ability to burn money (battle of the sexes). The burning of money is illegal in some jurisdictions. (Full article...)
The Luxembourg franc (F or ISO LUF, Luxembourgish: Frang), subdivided into 100 centimes, was the currency of Luxembourg between 1854 and 2002, except from 1941 to 1944. From 1944 to 2002, its value was equal to that of the Belgian franc. The franc remained in circulation until 2002, when it was replaced by the euro. (Full article...)
... that medievalist Edward Rand rang the doorbell of Harvard president Charles William Eliot and asked him: "I would like to go to Harvard; do you have any money?"
... that Frankie Saluto was a member of the Ringling Giants, a dwarf baseball team that raised money for charity?
... that even though a village said that it did not want a church, Indonesian politician Thoriqul Haq allocated land and money to build one along with a musalla?
The following are images from various currency-related articles on Wikipedia.
Image 1Athens coin (c. 500/490-485 BC) discovered in Pushkalavati. This coin is the earliest known example of its type to be found so far east. (from Punch-marked coins)
Image 20Tibetan undated silver tangka (2nd half of 18th century) with eight times the syllable "dza" in vartula script,reverse (from Tibetan tangka)
Image 21A 640 BC one-third staterelectrum coin from Lydia. According to Herodotus, the Lydians were the first people to introduce the use of gold and silver coins. It is thought by modern scholars that these first stamped coins were minted around 650 to 600 BC. (from Money)
Image 22Money Base, M1 and M2 in the U.S. from 1981 to 2012 (from Money)