100 euro note has a green colour scheme. The hundred euro notes depict bridges and arches/doorways in the Baroque and Rococo style (between the 17th and 18th century). The hundred euro note contains several complex security features such as watermarks, invisible ink, holograms and microprinting that document its authenticity. The new banknotes of the Europa series 100 euro banknote will start circulating on 28 May 2019. The euro was founded on 1 January 1999, when it became the currency of over 300 million people in Europe. For the first three years of its existence it was an invisible currency, only used in accountancy.
Language and the euro the same as the unit of measurement of time or of angle. The term , plural ("evroleptó", plural "evroleptá") is sometimes used when a speaker wants to be completely specific that they are referring to money and not time. Some colloquial names for currency are also in use for the euro. One and two euro coins are respectively called ("frago") and ("difrago") from the French "franc". A 5 euro banknote is also colloquially called ("taliro") from the Germanic root "thaler" via the Italian "talero". A 10 euro banknote is called ("dekariko"), a 20 euro banknote is called ("eikosariko") or ("eikosari"),