The paper currency had many advantages, such as reducing the transport of gold and silver, thus lowering the risks involved. It had many disadvantages as well such as inflationary bubble if excess of money was printed.

This led to the practice of many nations establishing mints to print money and mint coins, and hold gold and silver stocks to back up the printed paper money. The creation of Central Banks across nations also marked significant changes in the currency issuing policy, in 18th & 19th Century, the monopoly to issue currency rested with a central monetary authority, whose notes came to be accepted for �all debts � public and private�. This led to the creation of truly national currency that was backed by the governments� treasury, containing gold and silver.

By 1900, paper notes became widely accepted as a medium of exchange, with private banks and governments of the world following the Gresham�s Law, keeping gold and silver paid, but paying out in notes. By the 20th Century, currency notes became universally accepted, as countries started confiscating all the privately held gold to back up their currency notes.

AFGHANISTAN 1000 AFGHANIS BANKNOTE
The 1000 Afghanis banknote of Afghanistan was issued in 2004 with the size of 157mm x 66mm. On the front of the note the Shrine of Hazrat Ali (Blue Mosque) located in Mazar-e Sharif; and on the back the Tomb of Ahmad Shah Baba (Maqbara-i Ahmad Shah Abdali) situated in Qandahar illustrated.

BELIZE $100 BANKNOTE
The $100 banknote of Belize with the size of 150mm x 75mm was printed by TDLR. The portrait of Queen Elizabeth II on the front and some of the country�s wide variety of birds shows on the reverse of the note. These include the jabiru stork Jabiru mycteria which is the Central Bank�s logo, the red footed booby Sula sula, the king vulture Sarcoramphus papa, the magnificent frigate bird Fregata magnificens, the brown pelican Pelecanus occidentalis and one of our larger mealy or blue crown parrots, Amazona farinose.

BHUTAN 500 NGULTRUM
The 500 ngultrum banknote of Bhutan shows the portrait of King Jigme Singye Wangchuk on the front and the Punakha Dzong Palace on the back of the note. The palace is the administrative and religious center of the district, and the winter home of Bhutan's Central Monk Body. The note itself is orange in color with 154mm x 70mm in size.

1000 SYRIAN POUNDS BANKNOTE OF SYRIA
The 1000 Syrian Pounds of Syria was issued in 1997. The front of the note shows the portrait of Hafez Assad at right and the Umayyad Mosque main entrance at centre, while the oil industry workers, harvesting machinery and fishing boat on the back of the note.

Holy Kaaba on Iran Banknote

Portrait of King Rama IX on Thailand Banknote

Picture of Lion on Tanzania 2000 Shilingi Banknote

Tomb of Abuabdullo Rudaki on Tajikistan 5 Somoni Banknote