Kingdom of Hungary Máté Csák III. The kingdom of Hungary reached an age of prosperity and stability under Charles I. The gold mines of the Kingdom were extensively worked and soon Hungary reached a prominent standing in European gold production. The forint was introduced as a currency, replacing the "denars", and soon after Charles's reforms were implemented, the economy of the Kingdom started to prosper again, having fallen into a parlous state following the Mongol invasion. Charles exalted the cult to Saint Ladislaus I, using him as a symbol of bravery, justice and purity. He also venerated his uncle, Saint Louis of Toulouse.
Neutral unit of construction Neutral unit of construction The neutral unit of construction or neutral unit of currency (code: NUC) is a private currency used by the airline industry, to record fare calculation information. A set of exchange rates is issued by the International Air Transport Association (IATA) every month. The ticket component prices are converted from the original currency (of the country of commencement of travel) and recorded on the airline ticket. The NUC system came into being on 1 July 1989, having superseded the older "Fare Construction Unit" (FCU) system. , the NUC is pegged approximately to the US dollar ($1 ≈