The zloty (pron. ['zw?t?] Pl-Zloty.ogg listen (help·info), the nominative plural used for numbers ending in 2, 3 and 4 (except ending in 12, 13 and 14): zlote ['zw?t?], the genitive plural used for all other numbers: zlotych ['zw?t?x], (sign: zl; code: PLN) literally meaning "golden", is the currency of Poland. The modern zloty is subdivided into 100 groszy (singular: grosz, alternate plural form: grosze).

As a result of inflation in the early 1990s, the currency underwent redenomination. Thus, on 1 January 1995, 10 000 old zlotych (PLZ) became one new zloty (PLN).

In 1950, a new zloty was introduced, replacing all earlier issues at a rate of one hundred to one. The new banknotes were dated 1948, whilst the new coins were dated 1949. From 1 January 1990 it was a convertible currency.

Between 1950 and 1990, a unit known as the zloty dewizowy (which can be roughly translated as the foreign exchange zloty) was used as an artificial currency for calculation purposes only. It existed because at the time the zloty was not convertible and its official rate of exchange was set by the Government, and there existed several exchange rates depending on the purpose of the transaction and who was exchanging, i.e. given amount in zloty could be exchanged for say US dollars at one of several official exchange rates depending on what was to be bought for the hard currency and the company that was buying foreign exchange; it worked similarly when a company had some earnings in Western currency and wanted (or had) to convert them into zlotych. The exchange rate did not depend on the amount being converted. Visitors from countries outside of the Soviet Bloc were offered a particularly poor exchange rate. Concurrently, the private black-market exchange rate contrasted sharply with the official government exchange rate until the end of Communist rule in 1989 when official rates were tied to market rates.

The new Polish zloty is the unofficial name of the current currency of Poland, introduced on 1 January 1995 as a result of the redenomination of the old currency. The official name of the Polish currency did not change since the Polish currency law of 1950 (DZ.U nr 50. poz. 459 with later changes), which defines the official currency as the zloty, remains in effect. The redenomination rate was 10 000 old Polish zloty to 1 new Polish zloty. The issuing bank is the Narodowy Bank Polski.

Conditions of the Poland's accession to the European Union (in May 2004) oblige the country to eventually adopt the euro, though not at any specific date and only after Poland would be able to meet the necessary stability criteria. On 10 September 2008, speaking at the launch of an economic forum in a Polish resort of Krynica-Zdrój, Polish Prime Minister Donald Tusk announced the ruling government's objective to join the Eurozone in 2012, by holding a referendum in 2010 and been approved by the European Central Bank in 2011.

Coins were introduced in 1995 (dated from 1990) in denominations of 1, 2, 5, 10, 20 and 50 groszy, 1 (colloquially called zlotówka), 2 and 5 zlotych (colloquially called piatka). The 1, 2, and 5 groszy are minted in brass, and the 10, 20 and 50 groszy and 1 zloty in cupro-nickel, whilst the 2 and 5 zlotych are bimetallic. 10, 20, 50, 100, 200 and 500 zlotych coins also exist and are legal tender, but are not in circulation.

In 1995, notes (dated 1994) were introduced in denominations of 10 (colloquially called dycha), 20, 50 (two varieties, one of which was issued for collectors), 100 (colloquially called stówa) and 200 zlotych. 10,000 Third zlotych = 1 Fourth "new" zloty. Oft used notes: 10, 20, 50 and 100 PLN. Rarely used note: 200 PLN. After years New Polish Zloty (PLN) is fully convertible currency well known by travellers and investors from all the World.

The leu ([lew], plural: lei [lej]; ISO 4217 code RON; numeric code 946) is the currency of Romania. It is subdivided into 100 bani (singular: ban). On 1 July 2005, Romania underwent a currency reform, switching from the previous leu (ROL) to a new leu (RON). 1 RON is equal to 10,000 ROL.

Romania joined the European Union on 1 January 2007 and it is expected to adopt the euro in 2014.

On August 15, 1947, a revaluation took place, with a new leu replacing the old one at a rate of 20,000 old lei = 1 new leu. This revaluation, called a monetary reform or stabilisation measure (mica stabilizare, marea stabilizare), was carried out by the Communist authorities with absolutely no advance warning and without the possibility to exchange more than a fixed amount of money for the new currency. This was done in order to depose the former middle and upper classes of their last assets, after nationalization, to prepare for collectivization and to finalize the installation of communism. At the time of its introduction, 150 new lei equalled 1 U.S. dollar.

In the 1990s, after the downfall of communism, inflation ran high due to reform failures, the legalization of owning foreign currency in 1990, and the bankrupt policies of the former communist era, reaching rates as high as 300% per year in 1993. By September 2003, one euro was exchanged for more than 40,000 lei, this being its peak value. Following a number of successful monetary policies in the late 1990s and early 2000s, the situation became gradually more stable, with one digit inflation in 2005.

The Romanian leu briefly held the dubious distinction of being the world's least valued currency unit, from January (when the Turkish lira dropped six zeros) to July 2005. However, the 1,000,000 lei bill was not the highest Romanian denomination ever. This distinction belongs to the 5 million lei bill from 1947.

On 1 July 2005, the leu was revalued at the rate of 10,000 "old" lei (ROL) for one "new" leu (RON), thus psychologically bringing the purchasing power of the leu back in line with those of other major Western currencies. The term chosen for the action was "denominare", similar to the English "denomination", to signify not a conversion, but rather a total reinvention.

The first day brought difficulties adjusting to the new paper currencies and closed ATMs (that needed reprogramming) and forcing a new calculation habit that slowed down shops and annoyed some salespeople and shoppers. The old ROL currency banknotes remained in circulation until December 31, 2006 (coins remained in circulation only until December 31, 2005), but all accounts have been converted starting July 1, 2005. There is no conversion time limit between the currencies. Retailers had to display prices in both old and new currency from March 1, 2005 until June 30, 2006. The appreciation of the leu during 2005 was about 20% against a basket of major currencies.

As of 2006, the revaluation is a potential source of confusion, especially to visitors, since both old and new currency values are commonly quoted. When written, the very large amounts in old currency are usually obvious, but in speaking inhabitants might refer to an amount of 5 new lei as simply "fifty" in reference to its value 50,000 old lei.

In 1952, coins were introduced in denominations of 1, 3, 5, 10 and 25 bani, with the 1, 3 and 5 struck in aluminium bronze and the others in cupro-nickel. In 1955, cupro-nickel 50 bani were added.

In 1960, a new coinage was introduced, consisting of 15 and 25 bani, with 5 bani, 1 and 3 lei coins added in 1963. All were struck in nickel-clad steel. In 1975, aluminium replaced steel in the 5 and 15 bani, with the same change happening for the 25 bani in 1982. Aluminium 5 lei were introduced in 1978.

Following the end of the communist regime, a new coinage was introduced between 1990 and 1992, consisting of 1 leu in bronze clad steel, 5 and 10 lei in nickel plated steel, 20 and 50 lei in brass clad steel and nickel plated steel 100 lei.

As inflation took its toll, 500, 1000 and 5000 lei coins were introduced in 1999, 2000 and 2001, respectively, and were the only coins circulating when the revaluation occurred. They were all criticized for being clumsy and difficult to use. The 500 lei coins were very thick (about 0.3 cm). Despite their small value, it took only a handful of such coins to fill one's pocket. They were also made of poor material and could be occasionally found with bite marks. The 1000 lei coin was considered too small and was also cheaply made, and the 5000 lei coin was not circular (it was a dodecagon). This made it awkward to handle and difficult to use in slot machines, where it was frequently the only coin accepted. The 500, 1000 and 5000 lei coins became worth 5, 10 and 50 bani with the revaluation.

In 1952, the Ministry of Finance introduced notes for 1, 3 and 5 lei, and the Banca Republicii Populare Romane introduced 10, 25 and 100 lei notes. In 1966, the Banca Nationala a Republicii Socialiste Romania took over the production of all paper money, issuing notes for 1, 3, 5, 10, 25, 50 and 100 lei.

In 1991, 500 and 1000 lei notes were introduced, followed by 200 and 5000 lei notes in 1992, 10,000 lei in 1994, 50,000 lei in 1996, 100,000 lei in 1998, 500,000 lei in 2000 and 1 million lei in 2003. There was also a 2000 lei note, introduced in 1999; it celebrated the total solar eclipse that occurred on August 11th, 1999. The final issues of the 2000, 10,000, 50,000, 100,000, 500,000 and 1 million lei were polymer notes.

Notes in circulation at the revaluation were:

* 10,000 lei (became 1 leu)
* 50,000 lei (became 5 lei)
* 100,000 lei (became 10 lei)
* 500,000 lei (became 50 lei)
* 1,000,000 lei (became 100 lei)

In 2005, polymer notes were introduced for 1, 5, 10, 50, 100 and 500 lei. 200 lei notes were added in 2006. The designs of the 1, 5, 10, 50 and 100 lei notes are based on those of the earlier 10,000, 50,000, 100,000, 500,000 and 1 million lei notes which they replaced. The 10 lei bill was redesigned in November 2008 (most of the graphic elements are identical, some of the safety elements were withdrawn, making its safety degree similar the the lower values of 1 leu and 5 lei bills).