15 years ago, on January 1, 2002, euro banknotes and coins, the single currency of the member countries of the European Union, were introduced into cash circulation. The euro is divided into 100 cents (euro cents). Eight types of euro coins are issued - 1, 2, 5, 10, 20 and 50 cents, as well as 1 and 2 euros. They vary in size, weight, color and thickness depending on the denomination. The highest denomination coins - 1 and 2 euros - are two-color (silver and yellow). The medium denomination coins - 10, 20 and 50 euro cents - are yellow, and the small denomination coins - 1, 2 and 5 euro cents - are copper in color. Unlike banknotes, which are the same for all countries in the eurozone, coins have one common side, which indicates the denomination of the coin, and the other, the “national” side. It features an image chosen by the country in which the coin was minted.