Arrange the following milestones in the history of the

Solution

To solve this, we must look at the specific years these foundational events occurred:

1. II. European Coal and Steel Community (1951): Following the Schuman Declaration in 1950, the Treaty of Paris was signed in 1951 (effective 1952). It pooled the coal and steel production of six countries (France, West Germany, Italy, Belgium, Netherlands, and Luxembourg) to make war "not merely unthinkable, but materially impossible."
2. IV. Treaty of Rome (1957): Building on the success of the ECSC, the same six nations signed the Treaties of Rome in 1957 (effective 1958). This created the European Economic Community (EEC) , establishing a "common market" and the European Atomic Energy Community (Euratom).
3. I. Maastricht Treaty (1992): Formally known as the Treaty on European Union, it was signed in 1992 (effective 1993). This was a turning point that transformed the "European Community" into the European Union (EU) , introduced the concept of European citizenship, and laid the groundwork for the single currency.
4. III. Introduction of Euro Banknotes and Coins (2002): While the Euro was launched as an "electronic" currency for financial markets in 1999, it wasn't until January 1, 2002 , that physical Euro notes and coins replaced national currencies (like the French Franc and German Mark) in 12 member states.