The Dutch guilder (Dutch: gulden, IPA: [ˈɣʏldə(n)]; Frisian: gûne, IPA: [ˈɡuːnə]; sign: ƒ or fl.) was the currency of the Netherlands from the 17th century until 2002, when it was replaced by the euro. Between 1999 and 2002, the guilder was officially a "national subunit" of the euro. However, physical payments could only be made in guilder, as no euro coins or banknotes were available. The Netherlands Antillean guilder is still in use in Curaçao and Sint Maarten (two countries in the Kingdom of the Netherlands), but this currency is distinct from the Dutch guilder. In 2004, the Surinamese guilder was replaced by the Surinamese dollar.

The Dutch name gulden was a Middle Dutch adjective meaning "golden", and the name indicates the coin was originally made of gold. The symbol ƒ or fl. for the Dutch guilder was derived from another old currency, the florijn, called the florin in English.

The exact exchange rate, still relevant for old contracts and for exchange of the legacy currency for euros at the central bank, is 2.20371 Dutch guilders (NLG) for 1 euro (EUR). Inverted, this gives EUR 0.453780 for NLG 1.

Robert Deodaat Emile (Ootje) Oxenaar (born 7 October 1929 at The Hague) is a Dutch graphic artist.

Ootje Oxenaar studied visual arts at the Royal Academy of Art in The Hague. From 1966 until 1985 he worked for the Nederlandsche Bank, where he designed two series of banknotes.

& Images of banknotes by Oxenaar

Michiel Adriaenszoon de Ruyter (Dutch pronunciation: [miˈχil ˈaˑdrijaˑnˌsoˑn də ˈrœy̆tər]; 24 March 1607 – 29 April 1676) is the most famous and one of the most skilled admirals in Dutch history. De Ruyter is most famous for his role in the Anglo-Dutch Wars of the 17th century. He fought the English and French and scored several major victories against them, the best known probably being the Raid on the Medway. The pious De Ruyter was very much loved by his sailors and soldiers; from them his most significant nickname derived: Bestevaêr (older Dutch for 'grandfather'.)

De Ruyter was born in 1607 in Flushing (Vlissingen) as the son of beer porter Adriaen Michielszoon and Aagje Jansdochter Little is known about De Ruyter's early life, but he probably became a sailor at the age of 11. In 1622 he fought as a musketeer in the Dutch army under Maurice of Nassau against the Spaniards during the relief of Bergen-op-Zoom. That same year he rejoined the Dutch merchant fleet and steadily worked his way up. According to English sources he was active in Dublin between 1623 and 1631 as an agent for the Vlissingen-based merchant house of the Lampsins brothers. Although Dutch sources have no data about his whereabouts in those years, it is known that De Ruyter spoke Irish fluently. He would occasionally travel as supercargo to the Mediterranean or the Barbary Coast. In those years he usually referred to himself as "Machgyel Adriensoon", his name in the Zealandic dialect he spoke, not having yet adopted the name "De Ruyter". "De Ruyter" most probably was a nickname given to him. An explanation might be found in the meaning of the older Dutch verb ruyten or ruiten which means "to raid", something De Ruyter was known to do as a privateer with the Lampsins ship Den Graeuwen Heynst.

Wouter Koolmees (born March 20, 1977 in Capelle aan den IJssel) is a Dutch politician and former civil servant. As a member of Democrats 66 (D66) he has been an MP since June 17, 2010. He focuses on matters of finance, transport and water supply.

Koolmees studied economics at Utrecht University. He worked among others at the Ministry of Finance.