In 1992, the Maastricht Treaty established the provisions for the euro, including strict criteria for member states to participate in the currency.
Since 1993, all nations that have joined the EU have pledged to adopt the euro in due course.
On 4 August 1995, Belgian Esperantist Germain Pirlot suggested the name "euro" in a letter to then President of the European Commission, Jacques Santer.
In December 1995, the name 'euro' was officially adopted in Madrid.
In Madrid on 16 December 1995, the name "euro" was officially adopted.
In December 1998, the Council of the European Union determined the exchange rates based on market rates on December 31, 1998.
Following 1998, physical investment in the Eurozone reportedly increased by 5% due to the introduction of the euro.
In 1998, Wim Duisenberg, European Central Bank Governor, made statements about the euro as a way to foster a closer sense of joint identity between European citizens.
In January 1999, the euro was introduced to world financial markets as an accounting currency, replacing the European Currency Unit (ECU) at a 1:1 ratio.
On January 1, 1999, the euro was introduced in non-physical form (electronic transfers, banking, etc.), and the national currencies of participating countries ceased to exist independently.
The euro was introduced on 4 January 1999.
Between December 1999, the euro traded below the US dollar.
In 1999, the euro opened for business with rules to limit a country's annual deficit to three per cent of gross domestic product, and the total accumulated debt to sixty per cent of G.D.P.
In 1999, the euro was introduced and became the second most widely held international reserve currency after the U.S. dollar.
In 2000, Laurent Fabius, French Finance Minister, made statements about the euro as a way to foster a closer sense of joint identity between European citizens.
In 2000, the euro's exchange rate against other major currencies fell, reaching its lowest exchange rates.
Studies in 2000 failed to find any evidence of convergence following the introduction of the euro after a phase of convergence in the early 1990s.
The earliest date on which the national currencies ceased to be legal tender was in Germany, where the mark officially ceased to be legal tender on 31 December 2001.
The Maastricht Treaty was amended by the 2001 Treaty of Nice.
On January 1, 2002, new euro notes and coins were introduced, while the old currencies continued to be used as legal tender.
On January 1, 2002, physical euro coins and banknotes entered into circulation, making the euro the day-to-day operating currency of its original member states.
Since January 1, 2002, the national central banks (NCBs) and the ECB have issued euro banknotes on a joint basis.
The changeover period, during which former currencies' notes and coins were exchanged for those of the euro, lasted until 28 February 2002.
By March 2002, the euro had completely replaced the former currencies of its member states.
Between December 2002, the euro traded below the US dollar.
The earliest coins to become non-convertible were the Portuguese escudos, which ceased to have monetary value after 31 December 2002.
As of 2002, the euro coins for the denominations except the 1-, 2- and 5-cent coins, the map only showed the 15 member states of the union.
In 2002, Romano Prodi, President of the European Commission, made statements about the euro as a way to foster a closer sense of joint identity between European citizens.
Between 2000 and 2003, the process of price convergence slowed down substantially in the Eurozone.
In 2004, Greece issued a commemorative coin to celebrate the Summer Olympics.
Since 2005, stamps issued by the Sovereign Military Order of Malta have been denominated in euros.
In September 2007, former Federal Reserve Chairman Alan Greenspan stated that it was "absolutely conceivable that the euro will replace the US dollar as reserve currency, or will be traded as an equally important reserve currency".
Beginning in 2007, the old map was replaced by a map of Europe also showing countries outside the EU (depending on the country).
Following the financial crisis of 2007, governments in Eurozone countries found it necessary to bail out or nationalise their privately held banks.
The global financial crisis started in 2007.
On July 18, 2008, the euro peaked at US$1.60 against the US dollar.
Beginning in 2008, the old map was replaced by a map of Europe also showing countries outside the EU (depending on the country).
Following the U.S. financial crisis in 2008, fears of a sovereign debt crisis developed among investors concerning some European states.
In 2008, the euro's exchange rate reached its historical highest point.
In 2008, the euro's share as a reserve currency reached 27%, while the U.S. dollar's share fell to 64%.
A recent study suggested that price convergence in the Eurozone resurfaced after 2003 and until 2009.
In 2009 fears of a sovereign debt crisis developed among investors concerning some European states, with the situation becoming particularly tense in early 2010.
In 2009, Zimbabwe abandoned its local currency and introduced major global convertible currencies instead, including the euro.
In 2009, a consensus from studies concluded that the introduction of the euro had increased trade within the Eurozone by 5% to 10%.
Since January 1, 2010, the São Tomé and Príncipe dobra has been pegged to the euro.
A more recent meta-analysis shows that publication bias decreases over time and that there are positive trade effects from the introduction of the euro, as long as results from before 2010 are taken into account.
In 2010, the euro area's government debt/GDP ratio of 86% was about the same level as that of the United States.
In early 2010 the situation became particularly tense in the Eurozone.
In November 2011, the euro's exchange rate index was trading almost two percent higher on the year, approximately at the same level as it was before the crisis began in 2007.
According to the Economist Intelligence Unit in 2011, the euro area's economic and fiscal position looked no worse and in some respects, rather better than that of the US or the UK.
Summer 2012 even as Germany received a debt-rating warning of its own.
As of 2013, 182 million people in Africa use a currency pegged to the euro, 27 million people outside the eurozone in Europe, and another 545,000 people on Pacific islands.
As of January 2014, interest rates of most member countries (particularly those with a weak currency) have decreased since the introduction of the euro.
Since 2018, euro has been used as a foreign trading currency in Venezuela.
As of April 27, 2019, issuance of the €500 euro banknote was discontinued as part of the Europa series.
As of December 2019, the euro had more than €1.3 trillion in circulation, marking it as one of the currencies with the highest combined value of banknotes and coins in circulation worldwide.
In December 2021, the ECB announced its plans to redesign euro banknotes by 2024.
In mid July 2022, the euro and the US dollar traded at par for a short period of time during an episode of dollar appreciation.
On July 13, 2022, the euro and US dollar hit parity for the first time in nearly two decades, partly due to the 2022 Russian invasion of Ukraine.
In September 2022, the US dollar's face value was higher than the euro, at around US dollar 0.95 per euro.
As of November 2022, list of authorized bank note printers.
Portuguese banknotes remained exchangeable until 2022.
The ECB set up a clearing system, T2 since March 2023, for large euro transactions.
As of 2023, the euro is the sole currency of 20 EU member states, constituting the "eurozone", some 347 million people in total.
Based on the introduction of the euro as the official currency in Croatia in 2023, the ECB argues that inflation due to a change of currency is a one-time effect of limited impact.
On 11 July 2024, the euro recorded a new high against the Japanese yen during a long period of depreciation of the latter.
According to Eurobarometer data in 2024, there are varied levels of public support for the euro among different countries.
By 2024, the ECB plans to redesign euro banknotes.