The introduction of the euro in Europe is subject to several criteria. In 1979, the European Community created the «European Exchange Rate Mechanism» (ERM). On 16 April, 2003, Slovakia, together with nine other countries, signed the EU Accession Treaty in Athens. These countries promised to adopt the single currency (the euro). It has been 10 years since the introduction of the euro in Slovakia. It stands to highlight factors that have contributed to the economic, innovation development experienced in recent years regarding introducing a single currency. This article aims to briefly introduce the euro area and present each country's accession in historical order. the authors presented the general conditions for introducing the euro and then went on to the events related to the regional innovations governance of Slovakia. Using the data from the statistical site Eurostat, the Pearson correlation coefficient was used to indicate the closeness of relationships between the average values of inflation and government deficit and the average values of inflation and the public debt. The limitations of the research are that Eurostat's values are only indicative and, in the event of a possible accession, EU bodies would certainly use other, more reliable data. Furthermore, the ERM II criterion for joining the euro area cannot be examined due lack of statistics available on the Slovak koruna's value after the introduction. Another limitation is that the EU sometimes makes adjustments to calculating inflation and average nominal long-term interest rates. There is a lack of a significant relationship between the examined variables in the case of Slovakia. Based on the 2018 inflation rate, the introduction would not have been possible, as it was slightly higher (2.5 per cent) than the limit (2.23 per cent). Therefore, the authors assumed that Slovakia had adopted the euro on time, as if it had not done so on 1 January 2009, it would probably have had to wait a few years for the new opportunity. Although their results are only indicative and not decisive without taking ERM II into account, it is possible to do without specific indicators.